B01.06 - Bi-Metallic Conductors

ABSTRACT
This specification covers round, aluminum-clad steel core wire used for mechanical reinforcement in the manufacture of aluminum conductors, aluminum-clad steel reinforced. The base metal shall be steel produced by the openhearth, electric-furnace, or basic-oxygen process and shall be of such composition that the finished clad wire shall have the properties and characteristics prescribed in this specification. The aluminum used for cladding shall have a purity and quantity sufficient to meet thickness and resistance requirements of this specification. The material shall conform to the required tensile properties such as stress, tensile strength, and elongation. The aluminum-clad steel core shall undergo elongation test, tension test, and torsion test. The elongation test shall be determined by an extensometer equipped with a vernier or other instrument reading. In the torsion test, a small tensile load shall be applied to the specimen during testing. The specimen shall be twisted by rotating one of the vises in the same direction until fracture occurs.
SCOPE
1.1 This specification covers round, aluminum-clad steel core wire with two designations of tensile strengths, AW2 (Normal Strength) and AW3 (High Strength).  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.2.1 For conductor sizes designated by AWG, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers annealed bare round copper-clad steel wire for the following applications: electrical, electronic, grounding, telecommunications, and other applications. Four types of copper-clad steel wires according to their electrical conductivities are included. The wire shall consist of a core of homogeneous open-hearth, electric-furnace, or basic-oxygen steel with a continuous outer cladding of copper thoroughly bonded to the core throughout. The copper-clad steel wire shall conform to the specified requirements for: tensile strength, elongation, dimension (diameter), adhesion and surface defects, joints, finish, copper thickness, density, and electrical resistivity. Methods for measurement, inspection, and testing such as torsion (twist) test are detailed.
SCOPE
1.1 This specification covers bare round copper-clad steel for the following applications: electrical, electronic, grounding, telecommunications, and other applications.  
1.2 Four conductivities are covered as follows: 21 %, 30 %, 40 %, and 70 %.  
1.3 Temper is designated as annealed.  
1.4 The values stated in inch-pound or SI units are to be regarded separately as the standard. Each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. For conductor sizes designated by AWG, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.  
1.5 The following precautionary statement pertains to the test method portion only, Section 7, of this specification: This standard does not purport to address all of the safety concerns, if any associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers hard-drawn round copper-clad steel electrical conductor for CATV drop wire (coaxial cable center conductor). The wire shall be composed of a steel core with a substantially uniform and continuous copper cladding thoroughly bonded to it throughout. The size shall be expressed as the diameter of the wire. The steel wire shall conform to the prescribed tensile strength, elongation, and breaking strength. Requirements for (1) tension and torsion tests, (2) method of determining the electrical resistance, (3) cladding uniformity in terms of thickness, and (4) joint construction are detailed. The prescribed density of the wire to be taken for calculating mass/unit length, cross section, and so forth is given.
SCOPE
1.1 This specification covers 21 % conductivity hard-drawn round copper-clad steel wire for coaxial cable center conductors (Note 1).  
Note 1: Wire ordered to this specification is not intended for redrawing since it is furnished in the hard-drawn temper. If wire is desired for the purpose, the manufacturer should be consulted.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers bare concentric-lay-stranded conductors made from bare, hard-drawn, round, aluminum-clad steel wires for generail use of electrical purposes. This specification does not apply to stranded conductors for reinforcement in ACSR conductors. The conductors shall conform to the required values of breaking strength, nominal diameter and number of individual wires, conductor diameter, mass per unit length and electrical resistance.. Physical and electrical tests shall be performed on the wires before stranding.
SCOPE
1.1 This specification covers bare concentric-lay-stranded conductors made from bare, hard-drawn, round, aluminum-clad steel wires of 20.3 % conductivity for general use of electrical purposes. This specification does not apply to stranded conductors for reinforcement in ACSR conductors.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers the manufacturing and testing requirements for copper clad aluminum rectangular bar for electrical (bus) applications. Six classes of copper-clad aluminum bar are covered:
SCOPE
1.1 This specification covers copper clad aluminum rectangular bar for electrical (bus) applications.  
1.2 Six classes of copper-clad aluminum bar are covered as follows:
Class 20A—Nominal 20 volume % copper, annealed.
Class 25A—Nominal 25 volume % copper, annealed.
Class 30A—Nominal 30 volume % copper, annealed.
Class 20H—Nominal 20 volume % copper, hard-worked.
Class 25H—Nominal 25 volume % copper, hard-worked.
Class 30H—Nominal 30 volume % copper, hard-worked.  
1.3 The values stated in inch-pound units are to be regarded as the standard, except for resistivity and density, where the SI units are the standard. The values given in parentheses are for information only.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers nickel-coated, round, copper-clad steel wire for electronic applications. The nickel-coated wire shall consist of the basis wire coated with nickel. Tensile strength and elongation of the nickel-coated wire shall conform to the specified requirements for the applicable size and class of copper-clad steel wire. The electrical resistivity shall not exceed the values specified. Continuity, adherence, and mass of the coating shall be determined. Necessary joints in the wire and rod prior to final coating and drawing shall be made.
SCOPE
1.1 This specification covers nickel-coated, round, copper-clad steel wire for electronic application.  
1.2 Nickel coatings in mass percentages of the total mass of the coated wire are as follows: 2 %, 4 %, 7 %, 10 %, and 27 %. Nickel-coated wire having different minimum mass percentages of nickel may be obtained by mutual agreement between the manufacturer and the purchaser. For information purposes, the thickness of coating in microinches provided by the percentages listed above is shown in Table 1.  
1.3 Four classes of nickel-coated, copper-clad steel wire are covered as follows:  
1.3.1 Class N30HS—Nominal 30 % conductivity, hard drawn.  
1.3.2 Class N30A—Nominal 30 % conductivity, annealed.  
1.3.3 Class N40HS—Nominal 40 % conductivity, hard drawn.  
1.3.4 Class N40A—Nominal 40 % conductivity, annealed.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4.1 Exception—The SI values for resistivity are to be regarded as standard.  
1.5 The following safety hazards caveat pertains only to the test method described in this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.(Warning—Consideration should be given to toxicity and flammability when selecting solvent cleaners.)  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers tin-coated, copper-clad steel wires for electronic applications. The four classes of steel wires considered here are: hard-drawn wires with 30% nominal conductivity (Class T30HS); annealed wires with 30% nominal conductivity (Class T30A); hard-drawn wires with 40% nominal conductivity (Class T40HS); and annealed wires with 40% nominal conductivity (Class T40A). Specimens shall go through tests and shall adhere to specified requirements for dimensions, electrical resistivity, tensile strength, and coating continuity and adherence.
SCOPE
1.1 This specification covers tin-coated copper-clad steel wire for electronic application.  
1.2 Four classes of tin-coated copper-clad steel wire are covered as follows:  
1.2.1 Class T30HS—Nominal 30 % conductivity, hard-drawn,  
1.2.2 Class T30A—Nominal 30 % conductivity, annealed,  
1.2.3 Class T40HS—Nominal 40 % conductivity, hard-drawn, and  
1.2.4 Class T40A—Nominal 40 % conductivity, annealed.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3.1 Exception—The SI values for resistivity and volume are to be regarded as standard.  
1.4 The following safety hazards caveat pertains only to the test method portion, Section 6, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. (Warning—Consideration should be given to toxicity and flammability when selecting solvent cleaners.)  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers concentric-lay-stranded conductors made from uncoated hard-drawn round copper wires in combination with hard-drawn round copper-clad steel wires for general use as overhead electrical conductors. The conductors are classified under the following type designations: Type A, Type C, Type D, Type E, Type EK, Type F, Type G, Type J, Type K, Type N, Type P, and Type V. Welds and brazes may be made in copper rods or in copper wires prior to final drawing. Joints may not be made in the finished copper wires composing concentric-lay-stranded composite conductors containing a total of seven wires or less. In other conductors, welds and brazes may be made in the finished individual copper wires composing the conductor. Also, the joints or splices may be made in the finished individual copper-clad steel wires composing concentric-lay-stranded conductors, provided that such joints or splices have a protection equivalent to that of the wire itself and that they do not decrease the strength of the finished stranded conductor below the minimum breaking strength. The density, mass, and resistance of the wires shall be determined.
SCOPE
1.1 This specification covers concentric-lay-stranded conductors made from uncoated hard-drawn round copper wires in combination with hard-drawn round copper-clad steel wires for general use as overhead electrical conductors.  
1.2 For the purpose of this specification, conductors are classified under the following type designations (see Fig. 1):    
Type A  
Type G  
Type C  
Type J  
Type D  
Type K  
Type E  
Type N  
Type EK  
Type P  
Type F  
Type V
FIG. 1 Standard Types of Composite Conductors  
1.3 The SI values for density are regarded as the standard. For all other properties the inch-pound values are to be regarded as standard and the SI units may be approximate.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers bare round copper-clad steel wire for electronic application. Four classes of copper-clad steel wire are covered as Class 30HS, 30A, 40HS, and 40A. The wire shall consist of a core of homogeneous open-hearth, electric-furnace, or basic-oxygen steel with a continuous outer cladding of copper thoroughly bonded to the core throughout. The copper-lad steel wire shall conform to the tensile strength and elongation requirements. Electrical resistivity test shall be performed at a specified temperature of each class of wire and shall not exceed the values prescribed in this specification. Dimensional measurements shall be made with a micrometer caliper and shall withstand torsion test without fracturing. Copper cladding to the steel of each of the four specimens shall conform to the adhesion criterion. Surface finish shall meet the required allowable number of defects.
SCOPE
1.1 This specification covers bare round copper-clad steel wire for electronic application.  
1.2 Four classes of copper-clad steel wire are covered as follows:  
1.2.1 Class 30HS—Nominal 30 % conductivity high-strength hard-drawn,  
1.2.2 Class 30HS-A—Nominal 30 % conductivity high-strength annealed,  
1.2.3 Class 40HS—Nominal 40 % conductivity high-strength hard-drawn, and  
1.2.4 Class 40HS-A—Nominal 40 % conductivity high-strength annealed.  
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are in SI units.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers four conductivities of bare, hard-drawn, round, aluminum-clad steel wire for general use for electrical purposes. The wire shall be composed of a steel core with a substantially uniform and continuous aluminum covering thoroughly bonded to it. The drawn wire shall have the properties and characteristics prescribed in the specification. The wire of varying nominal diameters shall conform to the prescribed tensile requirements such as tensile strength and elongation. The electrical resistance of the wire shall be determined by resistance measurements and maximum resistance shall be based on the nominal diameter of the wire and the resistivity value. The steel wire shall conform to the prescribed values of physical constants such as modulus of elasticity, coefficient of linear expansion, and temperature coefficient of resistance. Within a required range of diameters, the wire shall not vary from the specified diameter by more than the amount indicated. The aluminum thickness at any point shall not be less than the required values. The wire shall undergo a twist test, where the specimen shall be gripped at its ends in vises, one of which shall be free to move longitudinally during the test. The finished wire shall contain no joints or splices. The material shall also conform to the approximate properties of hard-drawn conductivity aluminum-clad steel wire.
SCOPE
1.1 This specification covers four conductivities of bare, hard-drawn, round, aluminum-clad steel wire for general use for electrical purposes in sizes 0.2043 to 0.0808 in. incl (4 to 12 AWG) (Note 1). This specification does not apply to wires used as reinforcement in ACSR conductors. (See Specification B502.)  
Note 1: Wire ordered to this specification is not intended for redrawing. If wire is desired for this purpose, the manufacturer shall be consulted.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers bare concentric-lay-stranded conductors made from bare round copper-clad steel wires for general use for electrical purposes. Conductors are classified as follows: Grade 40 HS, Grade 30 HS, and Grade 30 EHS. The numbers and diameters of the wires in the concentric-lay-stranded conductors shall conform to the requirements prescribed. Tests for physical and electrical properties of wires composing concentric-lay-stranded conductors made from copper-clad steel wire shall be made before stranding.
SCOPE
1.1 This specification covers bare concentric-lay-stranded conductors made from bare round copper-clad steel wires for general use for electrical purposes.  
1.2 For the purpose of this specification, conductors are classified as follows: Grade 40 HS, Grade 30 HS, Grade 30 EHS, Grade 40 DSA, and Grade 30 DSA.
The grades covered by this specification correspond to the following commercial designations:    
Grade 40 HS,  
High Strength, 40 % Conductivity, Hard Drawn  
Grade 30 HS,  
High Strength, 30 % Conductivity, Hard Drawn  
Grade 30 EHS,  
Extra High Strength, 30 % Conductivity, Hard Drawn  
Grade 40 DSA,  
40 % Conductivity, Dead Soft Annealed  
Grade 30 DSA,  
30 % Conductivity, Dead Soft Annealed  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers bare round copper-clad aluminum wire for electrical applications. Four classes of copper-clad aluminum wire are covered such as Class 10A, Class 15A, Class 10H, Class 15H. The wire shall consist of a core of aluminum with a continuous outer cladding of copper throughly bonded to the core throughout and shall be of such quality as to meet the requirements of this specification. The copper-clad aluminum wire shall conform to the tensile strength and elongation requirements. The electrical resistivity shall be measured. The copper-clad aluminum wire, when tested shall be free from seams or splits. They shall be free from cladding delamination. The finished wire shall contain no joints or splices. The density of the wire shall be taken for calculating mass/unit length, cross section and so forth.
SCOPE
1.1 This specification covers bare round copper-clad aluminum wire for electrical applications.  
1.2 Four classes of copper-clad aluminum wire are covered as follows:
Class 10A—Nominal 10 volume % copper, annealed,
Class 15A—Nominal 15 volume % copper, annealed,
Class 10H—Nominal 10 volume % copper, hard-drawn,
Class 15H—Nominal 15 volume % copper, hard-drawn.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3.1 Exception—The values stated in SI units for resistivity and density are to be regarded as standard.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers bare hard-drawn round copper-clad steel wire. The surface of the wire shall be smooth and free from imperfections not consistent with good commercial practice. The wire shall conform to the tensile requirements. Specimens shall be twisted to destruction and shall not reveal under test any seams, pits, slivers, or surface imperfections of sufficient magnitude to indicate inherent defects or imperfections in the wire. The electrical resistance of the wire shall be determined by resistance measurements. The finished wire shall contain no joints or splices made at finished size.
SCOPE
1.1 This specification covers bare hard-drawn round copper-clad steel wire for electrical purposes (Note 1).
Note 1: Wire ordered to this specification is not intended for redrawing. If wire is desired for this purpose, consult the manufacturer.  
1.2 Four grades of wire are specified, designated as follows (Note 2): Grade 40 HS, Grade 40 EHS, Grade 30 HS, and Grade 30 EHS.
Note 2: The grades covered by this specification correspond to the following commercial designations:
Grade 40 HS, High Strength, 40 % Conductivity.
Grade 40 EHS, Extra High Strength, 40 % Conductivity
Grade 30 HS, High Strength, 30 % Conductivity.
Grade 30 EHS, Extra High Strength, 30 % Conductivity.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification deals with silver-coated, round, copper-clad steel wires for electronic applications. The four classes of steel wires covered here are Classes 30HS, 30A, 40HS, and 40A. Specimens shall undergo tests that shall evaluate their conformance to the following physical properties: tensile strength, elongation, electrical resistivity, continuity and mass of the coating, and dimensions and density of the wire.
SCOPE
1.1 This specification covers silver-coated, round, copper-clad steel wire for electronic application.  
1.2 Silver coatings in mass percentages of the total mass of the coated wire are as follows: 1.25, 2.5, 4.0, 6.1, and 8.0.  
1.2.1 Silver-coated wire having different minimum percentage of silver by mass may be obtained by mutual agreement between the manufacturer and the purchaser. For information purposes, the thickness of coating in microinches provided by the mass percentages listed in 1.2 is shown in Table 1.  
1.3 Four classes of copper-clad steel wire are covered as follows: Class 30HS nominal 30 % conductivity hard-drawn, Class 30A nominal 30 % conductivity annealed, Class 40HS nominal 40 % conductivity hard-drawn, and Class 40A nominal 40 % conductivity annealed.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4.1 Exception—In resistivity the SI units are to be regarded as the standard.  
1.5 The following safety hazards caveat pertains to the test method described in this specification. This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. (Warning—Consideration should be given to toxicity and flammability when selecting solvent cleaners.)  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SIGNIFICANCE AND USE
14.1 Twist Test—This test is designed to detect surface related issues such as flaking or cracking in the shell as well as core integrity of the wire related to elongation. Failures under the specified requirements could lead to insulation failures allowing moisture and other factors to affect wire performance.  
14.2 Reverse Torsion—This test is designed to detect copper and core steel bonding issues which could lead to corrosion and eventual signal failure through the wire.
SCOPE
1.1 This specification covers bare round 21 % conductivity copper-clad steel wire for the center conductor in tracer wire, also known as locating wire.  
1.2 Two grades of copper-clad steel wire are covered as follows:  
1.2.1 21EHS: Nominal 21 % Conductivity Extra High Strength  
1.2.2 21EHS-A: Nominal 21 % Conductivity Extra High Strength-Annealed  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers round, aluminum-clad steel core wire used for mechanical reinforcement in the manufacture of aluminum conductors, aluminum-clad steel reinforced. The base metal shall be steel produced by the openhearth, electric-furnace, or basic-oxygen process and shall be of such composition that the finished clad wire shall have the properties and characteristics prescribed in this specification. The aluminum used for cladding shall have a purity and quantity sufficient to meet thickness and resistance requirements of this specification. The material shall conform to the required tensile properties such as stress, tensile strength, and elongation. The aluminum-clad steel core shall undergo elongation test, tension test, and torsion test. The elongation test shall be determined by an extensometer equipped with a vernier or other instrument reading. In the torsion test, a small tensile load shall be applied to the specimen during testing. The specimen shall be twisted by rotating one of the vises in the same direction until fracture occurs.
SCOPE
1.1 This specification covers round, aluminum-clad steel core wire with two designations of tensile strengths, AW2 (Normal Strength) and AW3 (High Strength).  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.2.1 For conductor sizes designated by AWG, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers annealed bare round copper-clad steel wire for the following applications: electrical, electronic, grounding, telecommunications, and other applications. Four types of copper-clad steel wires according to their electrical conductivities are included. The wire shall consist of a core of homogeneous open-hearth, electric-furnace, or basic-oxygen steel with a continuous outer cladding of copper thoroughly bonded to the core throughout. The copper-clad steel wire shall conform to the specified requirements for: tensile strength, elongation, dimension (diameter), adhesion and surface defects, joints, finish, copper thickness, density, and electrical resistivity. Methods for measurement, inspection, and testing such as torsion (twist) test are detailed.
SCOPE
1.1 This specification covers bare round copper-clad steel for the following applications: electrical, electronic, grounding, telecommunications, and other applications.  
1.2 Four conductivities are covered as follows: 21, 30, 40, and 70 %.  
1.3 Temper is designated as annealed.  
1.4 The values stated in inch-pound or SI units are to be regarded separately as the standard. Each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. For conductor sizes designated by AWG, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.  
1.5 The following precautionary statement pertains to the test method portion only, Section 7, of this specification: This standard does not purport to address all of the safety concerns, if any associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers hard-drawn round copper-clad steel electrical conductor for CATV drop wire (coaxial cable center conductor). The wire shall be composed of a steel core with a substantially uniform and continuous copper cladding thoroughly bonded to it throughout. The size shall be expressed as the diameter of the wire. The steel wire shall conform to the prescribed tensile strength, elongation, and breaking strength. Requirements for (1) tension and torsion tests, (2) method of determining the electrical resistance, (3) cladding uniformity in terms of thickness, and (4) joint construction are detailed. The prescribed density of the wire to be taken for calculating mass/unit length, cross section, and so forth is given.
SCOPE
1.1 This specification covers 21 % conductivity hard-drawn round copper-clad steel wire for coaxial cable center conductors (Note 1).  
Note 1: Wire ordered to this specification is not intended for redrawing since it is furnished in the hard-drawn temper. If wire is desired for the purpose, the manufacturer should be consulted.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers bare concentric-lay-stranded conductors made from bare, hard-drawn, round, aluminum-clad steel wires for generail use of electrical purposes. This specification does not apply to stranded conductors for reinforcement in ACSR conductors. The conductors shall conform to the required values of breaking strength, nominal diameter and number of individual wires, conductor diameter, mass per unit length and electrical resistance.. Physical and electrical tests shall be performed on the wires before stranding.
SCOPE
1.1 This specification covers bare concentric-lay-stranded conductors made from bare, hard-drawn, round, aluminum-clad steel wires of 20.3 % conductivity for general use of electrical purposes. This specification does not apply to stranded conductors for reinforcement in ACSR conductors.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers concentric-lay-stranded conductors made from uncoated hard-drawn round copper wires in combination with hard-drawn round copper-clad steel wires for general use as overhead electrical conductors. The conductors are classified under the following type designations: Type A, Type C, Type D, Type E, Type EK, Type F, Type G, Type J, Type K, Type N, Type P, and Type V. Welds and brazes may be made in copper rods or in copper wires prior to final drawing. Joints may not be made in the finished copper wires composing concentric-lay-stranded composite conductors containing a total of seven wires or less. In other conductors, welds and brazes may be made in the finished individual copper wires composing the conductor. Also, the joints or splices may be made in the finished individual copper-clad steel wires composing concentric-lay-stranded conductors, provided that such joints or splices have a protection equivalent to that of the wire itself and that they do not decrease the strength of the finished stranded conductor below the minimum breaking strength. The density, mass, and resistance of the wires shall be determined.
SCOPE
1.1 This specification covers concentric-lay-stranded conductors made from uncoated hard-drawn round copper wires in combination with hard-drawn round copper-clad steel wires for general use as overhead electrical conductors.  
1.2 For the purpose of this specification, conductors are classified under the following type designations (see Fig. 1):    
Type A  
Type G  
Type C  
Type J  
Type D  
Type K  
Type E  
Type N  
Type EK  
Type P  
Type F  
Type V  
1.3 The SI values for density are regarded as the standard. For all other properties the inch-pound values are to be regarded as standard and the SI units may be approximate.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers round, aluminum-clad steel core wire used for mechanical reinforcement in the manufacture of aluminum conductors, aluminum-clad steel reinforced. The base metal shall be steel produced by the openhearth, electric-furnace, or basic-oxygen process and shall be of such composition that the finished clad wire shall have the properties and characteristics prescribed in this specification. The aluminum used for cladding shall have a purity and quantity sufficient to meet thickness and resistance requirements of this specification. The material shall conform to the required tensile properties such as stress, tensile strength, and elongation. The aluminum-clad steel core shall undergo elongation test, tension test, and torsion test. The elongation test shall be determined by an extensometer equipped with a vernier or other instrument reading. In the torsion test, a small tensile load shall be applied to the specimen during testing. The specimen shall be twisted by rotating one of the vises in the same direction until fracture occurs.
SCOPE
1.1 This specification covers round, aluminum-clad steel core wire with two designations of tensile strengths, AW2 (Normal Strength) and AW3 (High Strength).  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.2.1 For conductor sizes designated by AWG, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers nickel-coated, round, copper-clad steel wire for electronic applications. The nickel-coated wire shall consist of the basis wire coated with nickel. Tensile strength and elongation of the nickel-coated wire shall conform to the specified requirements for the applicable size and class of copper-clad steel wire. The electrical resistivity shall not exceed the values specified. Continuity, adherence, and mass of the coating shall be determined. Necessary joints in the wire and rod prior to final coating and drawing shall be made.
SCOPE
1.1 This specification covers nickel-coated, round, copper-clad steel wire for electronic application.  
1.2 Nickel coatings in mass percentages of the total mass of the coated wire are as follows: 2, 4, 7, 10, and 27 %. Nickel-coated wire having different minimum mass percentages of nickel may be obtained by mutual agreement between the manufacturer and the purchaser. For information purposes, the thickness of coating in microinches provided by the percentages listed above is shown in Table 1.  
1.3 Four classes of nickel-coated, copper-clad steel wire are covered as follows:  
1.3.1 Class N30HS—Nominal 30 % conductivity, hard drawn.  
1.3.2 Class N30A—Nominal 30 % conductivity, annealed.  
1.3.3 Class N40HS—Nominal 40 % conductivity, hard drawn.  
1.3.4 Class N40A—Nominal 40 % conductivity, annealed.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4.1 Exception—The SI values for resistivity are to be regarded as standard.  
1.5 The following safety hazards caveat pertains only to the test method described in this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (Warning—Consideration should be given to toxicity and flammability when selecting solvent cleaners.)  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers the manufacturing and testing requirements for copper clad aluminum rectangular bar for electrical (bus) applications. Six classes of copper-clad aluminum bar are covered:
Class 20A—Nominal 20 volume % copper, annealed.
Class 25A—Nominal 25 volume % copper, annealed.
Class 30A—Nominal 30 volume % copper, annealed.
Class 20H—Nominal 20 volume % copper, hard-worked.
Class 25H—Nominal 25 volume % copper, hard-worked.
Class 30H—Nominal 30 volume % copper, hard-worked.
The products covered by this specification shall consist of a solid core of aluminum with a continuous outer copper layer bonded to the core throughout. This specification also covers information that shall be included in orders for materials, the responsibility of the producer for inspection and tests, tensile properties, bend properties, interface bonding, density, electrical properties, edge contours, dimensional tolerances, source inspection, retest, certification, and packaging and package marking.
SCOPE
1.1 This specification covers copper clad aluminum rectangular bar for electrical (bus) applications.  
1.2 Six classes of copper-clad aluminum bar are covered as follows:
Class 20A—Nominal 20 volume % copper, annealed.
Class 25A—Nominal 25 volume % copper, annealed.
Class 30A—Nominal 30 volume % copper, annealed.
Class 20H—Nominal 20 volume % copper, hard-worked.
Class 25H—Nominal 25 volume % copper, hard-worked.
Class 30H—Nominal 30 volume % copper, hard-worked  
1.3 The values stated in inch-pound units are to be regarded as the standard, except for resistivity and density, where the SI units are the standard. The values given in parentheses are for information only.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers tin-coated, copper-clad steel wires for electronic applications. The four classes of steel wires considered here are: hard-drawn wires with 30% nominal conductivity (Class T30HS); annealed wires with 30% nominal conductivity (Class T30A); hard-drawn wires with 40% nominal conductivity (Class T40HS); and annealed wires with 40% nominal conductivity (Class T40A). Specimens shall go through tests and shall adhere to specified requirements for dimensions, electrical resistivity, tensile strength, and coating continuity and adherence.
SCOPE
1.1 This specification covers tin-coated copper-clad steel wire for electronic application.  
1.2 Four classes of tin-coated copper-clad steel wire are covered as follows:  
1.2.1 Class T30HS—Nominal 30 % conductivity, hard-drawn,  
1.2.2 Class T30A—Nominal 30 % conductivity, annealed,  
1.2.3 Class T40HS—Nominal 40 % conductivity, hard-drawn, and  
1.2.4 Class T40A—Nominal 40 % conductivity, annealed.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3.1 Exception—The SI values for resistivity and volume are to be regarded as standard.  
1.4 The following safety hazards caveat pertains only to the test method portion, Section 6, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (Warning—Consideration should be given to toxicity and flammability when selecting solvent cleaners.)  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ABSTRACT
This specification covers bare round copper-clad aluminum wire for electrical applications. Four classes of copper-clad aluminum wire are covered such as Class 10A, Class 15A, Class 10H, Class 15H. The wire shall consist of a core of aluminum with a continuous outer cladding of copper throughly bonded to the core throughout and shall be of such quality as to meet the requirements of this specification. The copper-clad aluminum wire shall conform to the tensile strength and elongation requirements. The electrical resistivity shall be measured. The copper-clad aluminum wire, when tested shall be free from seams or splits. They shall be free from cladding delamination. The finished wire shall contain no joints or splices. The density of the wire shall be taken for calculating mass/unit length, cross section and so forth.
SCOPE
1.1 This specification covers bare round copper-clad aluminum wire for electrical applications.  
1.2 Four classes of copper-clad aluminum wire are covered as follows:
Class 10A—Nominal 10 volume % copper, annealed.
Class 15A—Nominal 15 volume % copper, annealed.
Class 10H—Nominal 10 volume % copper, hard-drawn.
Class 15H—Nominal 15 volume % copper, hard-drawn.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3.1 Exception—The values stated in SI units for resistivity and density are to be regarded as standard.

ABSTRACT
This specification covers bare concentric-lay-stranded conductors made from bare round copper-clad steel wires for general use for electrical purposes. Conductors are classified as follows: Grade 40 HS, Grade 30 HS, and Grade 30 EHS. The numbers and diameters of the wires in the concentric-lay-stranded conductors shall conform to the requirements prescribed. Tests for physical and electrical properties of wires composing concentric-lay-stranded conductors made from copper-clad steel wire shall be made before stranding.
SCOPE
1.1 This specification covers bare concentric-lay-stranded conductors made from bare round copper-clad steel wires for general use for electrical purposes.  
1.2 For the purpose of this specification, conductors are classified as follows: Grade 40 HS, Grade 30 HS, Grade 30 EHS, Grade 40 DSA, and Grade 30 DSA.
The grades covered by this specification correspond to the following commercial designations:    
Grade 40 HS,  
High Strength, 40% Conductivity, Hard Drawn  
Grade 30 HS,  
High Strength, 30% Conductivity, Hard Drawn  
Grade 30 EHS,  
Extra High Strength, 30% Conductivity, Hard Drawn  
Grade 40 DSA,  
40% Conductivity, Dead Soft Annealed  
Grade 30 DSA,  
30% Conductivity, Dead Soft Annealed  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ABSTRACT
This specification covers four conductivities of bare, hard-drawn, round, aluminum-clad steel wire for general use for electrical purposes. The wire shall be composed of a steel core with a substantially uniform and continuous aluminum covering thoroughly bonded to it. The drawn wire shall have the properties and characteristics prescribed in the specification. The wire of varying nominal diameters shall conform to the prescribed tensile requirements such as tensile strength and elongation. The electrical resistance of the wire shall be determined by resistance measurements and maximum resistance shall be based on the nominal diameter of the wire and the resistivity value. The steel wire shall conform to the prescribed values of physical constants such as modulus of elasticity, coefficient of linear expansion, and temperature coefficient of resistance. Within a required range of diameters, the wire shall not vary from the specified diameter by more than the amount indicated. The aluminum thickness at any point shall not be less than the required values. The wire shall undergo a twist test, where the specimen shall be gripped at its ends in vises, one of which shall be free to move longitudinally during the test. The finished wire shall contain no joints or splices. The material shall also conform to the approximate properties of hard-drawn conductivity aluminum-clad steel wire.
SCOPE
1.1 This specification covers four conductivities of bare, hard-drawn, round, aluminum-clad steel wire for general use for electrical purposes in sizes 0.2043 to 0.0808 in. incl (4 to 12 AWG) (Note 1). This specification does not apply to wires used as reinforcement in ACSR conductors. (See Specification B502.)  
Note 1: Wire ordered to this specification is not intended for redrawing. If wire is desired for this purpose, the manufacturer shall be consulted.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

ABSTRACT
This specification covers bare round copper-clad steel wire for electronic application. Four classes of copper-clad steel wire are covered as Class 30HS, 30A, 40HS, and 40A. The wire shall consist of a core of homogeneous open-hearth, electric-furnace, or basic-oxygen steel with a continuous outer cladding of copper thoroughly bonded to the core throughout. The copper-lad steel wire shall conform to the tensile strength and elongation requirements. Electrical resistivity test shall be performed at a specified temperature of each class of wire and shall not exceed the values prescribed in this specification. Dimensional measurements shall be made with a micrometer caliper and shall withstand torsion test without fracturing. Copper cladding to the steel of each of the four specimens shall conform to the adhesion criterion. Surface finish shall meet the required allowable number of defects.
SCOPE
1.1 This specification covers bare round copper-clad steel wire for electronic application.  
1.2 Four classes of copper-clad steel wire are covered as follows:  
1.2.1 Class 30HS—Nominal 30 % conductivity hard-drawn,  
1.2.2 Class 30A—Nominal 30 % conductivity annealed,  
1.2.3 Class 40HS—Nominal 40 % conductivity hard-drawn, and  
1.2.4 Class 40A—Nominal 40 % conductivity annealed.  
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are in SI units.

ABSTRACT
This specification deals with silver-coated, round, copper-clad steel wires for electronic applications. The four classes of steel wires covered here are Classes 30HS, 30A, 40HS, and 40A. Specimens shall undergo tests that shall evaluate their conformance to the following physical properties: tensile strength, elongation, electrical resistivity, continuity and mass of the coating, and dimensions and density of the wire.
SCOPE
1.1 This specification covers silver-coated, round, copper-clad steel wire for electronic application.  
1.2 Silver coatings in mass percentages of the total mass of the coated wire are as follows: 1.25, 2.5, 4.0, 6.1, and 8.0.  
1.2.1 Silver-coated wire having different minimum percentage of silver by mass may be obtained by mutual agreement between the manufacturer and the purchaser. For information purposes, the thickness of coating in microinches provided by the mass percentages listed in 1.2 is shown in Table 1.  
1.3 Four classes of copper-clad steel wire are covered as follows: Class 30HS nominal 30 % conductivity hard-drawn, Class 30A nominal 30 % conductivity annealed, Class 40HS nominal 40 % conductivity hard-drawn, and Class 40A nominal 40 % conductivity annealed.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.4.1 Exception—In resistivity the SI units are to be regarded as the standard  
1.5 The following safety hazards caveat pertains to the test method described in this specification. This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (Caution—Consideration should be given to toxicity and flammability when selecting solvent cleaners.)

ABSTRACT
This specification covers bare hard-drawn round copper-clad steel wire. The surface of the wire shall be smooth and free from imperfections not consistent with good commercial practice. The wire shall conform to the tensile requirements. Specimens shall be twisted to destruction and shall not reveal under test any seams, pits, slivers, or surface imperfections of sufficient magnitude to indicate inherent defects or imperfections in the wire. The electrical resistance of the wire shall be determined by resistance measurements. The finished wire shall contain no joints or splices made at finished size.
SCOPE
1.1 This specification covers bare hard-drawn round copper-clad steel wire for electrical purposes (Note 1).
Note 1: Wire ordered to this specification is not intended for redrawing. If wire is desired for this purpose, consult the manufacturer.  
1.2 Four grades of wire are specified, designated as follows (Note 2): Grade 40 HS, Grade 40 EHS, Grade 30 HS, and Grade 30 EHS.
Note 2: The grades covered by this specification correspond to the following commercial designations:
Grade 40 HS, High Strength, 40 % Conductivity.
Grade 40 EHS, Extra High Strength, 40 % Conductivity
Grade 30 HS, High Strength, 30 % Conductivity.
Grade 30 EHS, Extra High Strength, 30 % Conductivity.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

ABSTRACT
This specification covers annealed bare round copper-clad steel wire for the following applications: electrical, electronic, grounding, telecommunications, and other applications. Four types of copper-clad steel wires according to their electrical conductivities are included. The wire shall consist of a core of homogeneous open-hearth, electric-furnace, or basic-oxygen steel with a continuous outer cladding of copper thoroughly bonded to the core throughout. The copper-clad steel wire shall conform to the specified requirements for: tensile strength, elongation, dimension (diameter), adhesion and surface defects, joints, finish, copper thickness, density, and electrical resistivity. Methods for measurement, inspection, and testing such as torsion (twist) test are detailed.
SCOPE
1.1 This specification covers bare round copper-clad steel for the following applications: electrical, electronic, grounding, telecommunications, and other applications.  
1.2 Four conductivities are covered as follows: 21, 30, 40, and 70 %.  
1.3 Temper is designated as annealed.  
1.4 The values stated in inch-pound or SI units are to be regarded separately as the standard. Each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. For conductor sizes designated by AWG, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.  
1.5 The following precautionary statement pertains to the test method portion only, Section 7, of this specification: This standard does not purport to address all of the safety concerns, if any associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ABSTRACT
This specification covers bare concentric-lay-stranded conductors made from bare, hard-drawn, round, aluminum-clad steel wires for generail use of electrical purposes. This specification does not apply to stranded conductors for reinforcement in ACSR conductors. The conductors shall conform to the required values of breaking strength, nominal diameter and number of individual wires, conductor diameter, mass per unit length and electrical resistance.. Physical and electrical tests shall be performed on the wires before stranding.
SCOPE
1.1 This specification covers bare concentric-lay-stranded conductors made from bare, hard-drawn, round, aluminum-clad steel wires of 20.3 % conductivity for general use of electrical purposes. This specification does not apply to stranded conductors for reinforcement in ACSR conductors.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

ABSTRACT
This specification covers hard-drawn round copper-clad steel electrical conductor for CATV drop wire (coaxial cable center conductor). The wire shall be composed of a steel core with a substantially uniform and continuous copper cladding thoroughly bonded to it throughout. The size shall be expressed as the diameter of the wire. The steel wire shall conform to the prescribed tensile strength, elongation, and breaking strength. Requirements for (1) tension and torsion tests, (2) method of determining the electrical resistance, (3) cladding uniformity in terms of thickness, and (4) joint construction are detailed. The prescribed density of the wire to be taken for calculating mass/unit length, cross section, and so forth is given.
SCOPE
1.1 This specification covers 21 % conductivity hard-drawn round copper-clad steel wire for coaxial cable center conductors (Note 1). Note 1—Wire ordered to this specification is not intended for redrawing since it is furnished in the hard-drawn temper. If wire is desired for the purpose, the manufacturer should be consulted.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

ABSTRACT
This specification covers four conductivities of bare, hard-drawn, round, aluminum-clad steel wire for general use for electrical purposes. The wire shall be composed of a steel core with a substantially uniform and continuous aluminum covering thoroughly bonded to it. The drawn wire shall have the properties and characteristics prescribed in the specification. The wire of varying nominal diameters shall conform to the prescribed tensile requirements such as tensile strength and elongation. The electrical resistance of the wire shall be determined by resistance measurements and maximum resistance shall be based on the nominal diameter of the wire and the resistivity value. The steel wire shall conform to the prescribed values of physical constants such as modulus of elasticity, coefficient of linear expansion, and temperature coefficient of resistance. Within a required range of diameters, the wire shall not vary from the specified diameter by more than the amount indicated. The aluminum thickness at any point shall not be less than the required values. The wire shall undergo a twist test, where the specimen shall be gripped at its ends in vises, one of which shall be free to move longitudinally during the test. The finished wire shall contain no joints or splices. The material shall also conform to the approximate properties of hard-drawn conductivity aluminum-clad steel wire.
SCOPE
1.1 This specification covers four conductivities of bare, hard-drawn, round, aluminum-clad steel wire for general use for electrical purposes in sizes 0.2043 to 0.0808 in. incl (4 to 12 AWG) (Note 1). This specification does not apply to wires used as reinforcement in ACSR conductors. (See Specification B502.) Note 1—Wire ordered to this specification is not intended for redrawing. If wire is desired for this purpose, the manufacturer shall be consulted.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

ABSTRACT
This specification covers tin-coated, copper-clad steel wires for electronic applications. The four classes of steel wires considered here are: hard-drawn wires with 30% nominal conductivity (Class T30HS); annealed wires with 30% nominal conductivity (Class T30A); hard-drawn wires with 40% nominal conductivity (Class T40HS); and annealed wires with 40% nominal conductivity (Class T40A). Specimens shall go through tests and shall adhere to specified requirements for dimensions, electrical resistivity, tensile strength, and coating continuity and adherence.
SCOPE
1.1 This specification covers tin-coated copper-clad steel wire for electronic application.  
1.2 Four classes of tin-coated copper-clad steel wire are covered as follows:  
1.2.1 Class T30HS—Nominal 30 % conductivity, hard-drawn,  
1.2.2 Class T30A—Nominal 30 % conductivity, annealed,  
1.2.3 Class T40HS—Nominal 40 % conductivity, hard-drawn, and  
1.2.4 Class T40A—Nominal 40 % conductivity, annealed.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3.1 Exception—The SI values for resistivity and volume are to be regarded as standard.  
1.4 The following safety hazards caveat pertains only to the test method portion, Section 6, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (Warning—Consideration should be given to toxicity and flammability when selecting solvent cleaners.)

ABSTRACT
This specification covers nickel-coated, round, copper-clad steel wire for electronic applications. The nickel-coated wire shall consist of the basis wire coated with nickel. Tensile strength and elongation of the nickel-coated wire shall conform to the specified requirements for the applicable size and class of copper-clad steel wire. The electrical resistivity shall not exceed the values specified. Continuity, adherence, and mass of the coating shall be determined. Necessary joints in the wire and rod prior to final coating and drawing shall be made.
SCOPE
1.1 This specification covers nickel-coated, round, copper-clad steel wire for electronic application.  
1.2 Nickel coatings in mass percentages of the total mass of the coated wire are as follows: 2, 4, 7, 10, and 27 %. Nickel-coated wire having different minimum mass percentages of nickel may be obtained by mutual agreement between the manufacturer and the purchaser. For information purposes, the thickness of coating in microinches provided by the percentages listed above is shown in Table 1.TABLE 1 Nickel Mass Percent and Thickness of Coating    
Diameter  
Cross-Sectional Area at 20°C  
Thickness of Nickel,μ in.
(for information only)  
in.  
mm  
cmil  
in.2  
mm2  
2.0 %  
4.0 %  
7.0 %  
10.0 %  
27.0 %  
0.0720  
1.829  
5 180  
0.00407  
2.63  
334  
637  
1 181  
1 703  
4 892  
0.0641  
1.628  
4 110  
0.00323  
2.08  
298  
566  
1 050  
1 514  
4 349  
0.0571  
1.450  
3 260  
0.00256  
1.65  
266  
505  
936  
1 350  
3 880  
0.0508  
1.290  
2 580  
0.00203  
1.31  
236  
450  
833  
1 200  
3 452  
0.0453  
1.151  
2 050  
0.00161  
1.04  
211  
401  
743  
1 071  
3 077  
0.0403  
1.024  
1 620  
0.00128  
0.823  
202  
357  
661  
953  
2 738  
0.0359  
0.912  
1 290  
0.00101  
0.653  
167  
318  
589  
849  
2 439  
0.0320  
0.813  
1 020  
0.000804  
0.519  
149  
283  
525  
757  
2 174  
0.0285  
0.724  
812  
0.000638  
0.412  
133  
252  
467  
686  
1 937  
0.0253  
0.643  
640  
0.000503  
0.324  
118  
224  
415  
598  
1 719  
0.0226  
0.574  
511  
0.000401  
0.259  
105  
200  
371  
535  
1 536  
0.0201  
0.511  
404  
0.000317  
0.205  
94  
178  
330  
475  
1 366  
0.0179  
0.455  
320  
0.000252  
0.162  
83  
158  
294  
423  
1 216  
0.0159  
0.404  
253  
0.000199  
0.128  
74  
141  
261  
376  
1 080  
0.0142  
0.361  
202  
0.000158  
0.102  
66  
126  
233  
336  
965  
0.0126  
0.320  
159  
0.000125  
0.0804  
59  
112  
207  
298  
856  
0.0113  
0.287  
128  
0.000100  
0.0647  
53  
100  
185  
267  
768  
0.0100  
0.254  
100  
0.0000785  
0.0507  
47  
89  
164  
237  
680  
0.0089  
0.226  
79.2  
0.0000622  
0.0401  
41  
80  
146  
211  
605  
0.0080  
0.203  
64.0  
0.0000503  
0.0324  
...  
71  
131  
189  
544  
0.0071  
0.180  
50.4  
0.0000396  
0.0255  
...  
63  
116  
168  
482  
0.0063  
0.160  
39.7  
0.0000312  
0.0201  
...  
56  
103  
149  
428  
0.0056  
0.142  
31.4  
0.0000246  
0.0159  
...  
50  
92  
132  
381  
0.0050  
0.127  
25.0  
0.0000196  
0.0127  
...  
44  
82  
118  
340  
0.0045  
0.114  
20.2  
0.0000159  
0.0103  
...  
40  
74  
106  
306  
0.0040  
0.102  
16.0  
0.0000126  
0.00811  
...  
...  
66  
95  
272  
0.0035  
0.089  
12.2  
0.00000962  
0.00621  
...  
...  
57  
83  
238  
0.0031  
0.079  
9.61  
0.00000755  
0.00487  
...  
...  
51  
73  
211
1.3 Four classes of nickel-coated, copper-clad steel wire are covered as follows:  
1.3.1 Class N30HS—Nominal 30 % conductivity, hard drawn.  
1.3.2 Class N30A—Nominal 30 % conductiv...

ABSTRACT
This specification covers concentric-lay-stranded conductors made from uncoated hard-drawn round copper wires in combination with hard-drawn round copper-clad steel wires for general use as overhead electrical conductors. The conductors are classified under the following type designations: Type A, Type C, Type D, Type E, Type EK, Type F, Type G, Type J, Type K, Type N, Type P, and Type V. Welds and brazes may be made in copper rods or in copper wires prior to final drawing. Joints may not be made in the finished copper wires composing concentric-lay-stranded composite conductors containing a total of seven wires or less. In other conductors, welds and brazes may be made in the finished individual copper wires composing the conductor. Also, the joints or splices may be made in the finished individual copper-clad steel wires composing concentric-lay-stranded conductors, provided that such joints or splices have a protection equivalent to that of the wire itself and that they do not decrease the strength of the finished stranded conductor below the minimum breaking strength. The density, mass, and resistance of the wires shall be determined.
SCOPE
1.1 This specification covers concentric-lay-stranded conductors made from uncoated hard-drawn round copper wires in combination with hard-drawn round copper-clad steel wires for general use as overhead electrical conductors.
1.2 For the purpose of this specification, conductors are classified under the following type designations (see Fig. 1):
  Type AType G  Type CType J  Type DType K  Type EType N  Type EKType P  Type FType V
1.3 The SI values for density are regarded as the standard. For all other properties the inch-pound values are to be regarded as standard and the SI units may be approximate.
FIG. 1 Standard Types of Composite Conductors

ABSTRACT
This specification covers bare concentric-lay-stranded conductors made from bare round copper-clad steel wires for general use for electrical purposes. Conductors are classified as follows: Grade 40 HS, Grade 30 HS, and Grade 30 EHS. The numbers and diameters of the wires in the concentric-lay-stranded conductors shall conform to the requirements prescribed. Tests for physical and electrical properties of wires composing concentric-lay-stranded conductors made from copper-clad steel wire shall be made before stranding.
SCOPE
1.1 This specification covers bare concentric-lay-stranded conductors made from bare round copper-clad steel wires for general use for electrical purposes.
1.2 For the purpose of this specification, conductors are classified as follows: Grade 40 HS, Grade 30 HS, and Grade 30 EHS.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ABSTRACT
This specification covers bare concentric-lay-stranded conductors made from bare round copper-clad steel wires for general use for electrical purposes. Conductors are classified as follows: Grade 40 HS, Grade 30 HS, and Grade 30 EHS. The numbers and diameters of the wires in the concentric-lay-stranded conductors shall conform to the requirements prescribed. Tests for physical and electrical properties of wires composing concentric-lay-stranded conductors made from copper-clad steel wire shall be made before stranding.
SCOPE
1.1 This specification covers bare concentric-lay-stranded conductors made from bare round copper-clad steel wires for general use for electrical purposes.
1.2 For the purpose of this specification, conductors are classified as follows: Grade 40 HS, Grade 30 HS, and Grade 30 EHS.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ABSTRACT
This specification covers bare round copper-clad aluminum wire for electrical applications. Four classes of copper-clad aluminum wire are covered such as Class 10A, Class 15A, Class 10H, Class 15H. The wire shall consist of a core of aluminum with a continuous outer cladding of copper throughly bonded to the core throughout and shall be of such quality as to meet the requirements of this specification. The copper-clad aluminum wire shall conform to the tensile strength and elongation requirements. The electrical resistivity shall be measured. The copper-clad aluminum wire, when tested shall be free from seams or splits. They shall be free from cladding delamination. The finished wire shall contain no joints or splices. The density of the wire shall be taken for calculating mass/unit length, cross section and so forth.
SCOPE
1.1 This specification covers bare round copper-clad aluminum wire for electrical applications.
1.2 Four classes of copper-clad aluminum wire are covered as follows:
Class 10ANominal 10 volume % copper, annealed.
Class 15ANominal 15 volume % copper, annealed.
Class 10HNominal 10 volume % copper, hard-drawn.
Class 15HNominal 15 volume % copper, hard-drawn.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3.1 Exception—The values stated in SI units for resistivity and density are to be regarded as standard.

ABSTRACT
This specification covers bare hard-drawn round copper-clad steel wire. The surface of the wire shall be smooth and free from imperfections not consistent with good commercial practice. The wire shall conform to the tensile requirements. Specimens shall be twisted to destruction and shall not reveal under test any seams, pits, slivers, or surface imperfections of sufficient magnitude to indicate inherent defects or imperfections in the wire. The electrical resistance of the wire shall be determined by resistance measurements. The finished wire shall contain no joints or splices made at finished size.
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1.1 This specification covers bare hard-drawn round copper-clad steel wire for electrical purposes (Note 1).  
Note 1—Wire ordered to this specification is not intended for redrawing. If wire is desired for this purpose, consult the manufacturer.
1.2 Four grades of wire are specified, designated as follows (Note 2): Grade 40 HS, Grade 40 EHS, Grade 30 HS, and Grade 30 EHS.
Note 2—The grades covered by this specification correspond to the following commercial designations:
Grade 40 HS, High Strength, 40 % Conductivity.
  Grade 40 EHS, Extra High Strength, 40 % Conductivity
Grade 30 HS, High Strength, 30 % Conductivity.
Grade 30 EHS, Extra High Strength, 30 % Conductivity.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

ABSTRACT
This specification deals with silver-coated, round, copper-clad steel wires for electronic applications. The four classes of steel wires covered here are Classes 30HS, 30A, 40HS, and 40A. Specimens shall undergo tests that shall evaluate their conformance to the following physical properties: tensile strength, elongation, electrical resistivity, continuity and mass of the coating, and dimensions and density of the wire.
SCOPE
1.1 This specification covers silver-coated, round, copper-clad steel wire for electronic application.
1.2 Silver coatings in mass percentages of the total mass of the coated wire are as follows: 1.25, 2.5, 4.0, 6.1, and 8.0.
1.2.1 Silver-coated wire having different minimum percentage of silver by mass may be obtained by mutual agreement between the manufacturer and the purchaser. For information purposes, the thickness of coating in microinches provided by the mass percentages listed in 1.2 is shown in Table 1.
1.3 Four classes of copper-clad steel wire are covered as follows: Class 30HS nominal 30 % conductivity hard-drawn, Class 30A nominal 30 % conductivity annealed, Class 40HS nominal 40 % conductivity hard-drawn, and Class 40A nominal 40 % conductivity annealed.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4.1 Exception—In resistivity the SI units are to be regarded as the standard
1.5 The following safety hazards caveat pertains to the test method described in this specification. This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (CautionConsideration should be given to toxicity and flammability when selecting solvent cleaners.)

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1.1 This specification covers round, aluminum-clad steel core wire with two designations of tensile strengths, AW2 (Normal Strength) and AW3 (High Strength).  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.2.1 For conductor sizes designated by AWG, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.

ABSTRACT
This specification covers round, aluminum-clad steel core wire used for mechanical reinforcement in the manufacture of aluminum conductors, aluminum-clad steel reinforced. The base metal shall be steel produced by the openhearth, electric-furnace, or basic-oxygen process and shall be of such composition that the finished clad wire shall have the properties and characteristics prescribed in this specification. The aluminum used for cladding shall have a purity and quantity sufficient to meet thickness and resistance requirements of this specification. The material shall conform to the required tensile properties such as stress, tensile strength, and elongation. The aluminum-clad steel core shall undergo elongation test, tension test, and torsion test. The elongation test shall be determined by an extensometer equipped with a vernier or other instrument reading. In the torsion test, a small tensile load shall be applied to the specimen during testing. The specimen shall be twisted by rotating one of the vises in the same direction until fracture occurs.
SCOPE
1.1 This specification covers round, aluminum-clad steel core wire with two designations of tensile strengths, AW2 (Normal Strength) and AW3 (High Strength).  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.2.1 For conductor sizes designated by AWG, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.

ABSTRACT
This specification covers round, aluminum-clad steel core wire used for mechanical reinforcement in the manufacture of aluminum conductors, aluminum-clad steel reinforced. The base metal shall be steel produced by the openhearth, electric-furnace, or basic-oxygen process and shall be of such composition that the finished clad wire shall have the properties and characteristics prescribed in this specification. The aluminum used for cladding shall have a purity and quantity sufficient to meet thickness and resistance requirements of this specification. The material shall conform to the required tensile properties such as stress, tensile strength, and elongation. The aluminum-clad steel core shall undergo elongation test, tension test, and torsion test. The elongation test shall be determined by an extensometer equipped with a vernier or other instrument reading. In the torsion test, a small tensile load shall be applied to the specimen during testing. The specimen shall be twisted by rotating one of the vises in the same direction until fracture occurs.
SCOPE
1.1 This specification covers round, aluminum-clad steel core wire with two designations of tensile strengths, AW2 (Normal Strength) and AW3 (High Strength).
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.2.1 For conductor sizes designated by AWG, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.

ABSTRACT
This specification covers bare round copper-clad steel wire for electronic application. Four classes of copper-clad steel wire are covered as Class 30HS, 30A, 40HS, and 40A. The wire shall consist of a core of homogeneous open-hearth, electric-furnace, or basic-oxygen steel with a continuous outer cladding of copper thoroughly bonded to the core throughout. The copper-lad steel wire shall conform to the tensile strength and elongation requirements. Electrical resistivity test shall be performed at a specified temperature of each class of wire and shall not exceed the values prescribed in this specification. Dimensional measurements shall be made with a micrometer caliper and shall withstand torsion test without fracturing. Copper cladding to the steel of each of the four specimens shall conform to the adhesion criterion. Surface finish shall meet the required allowable number of defects.
SCOPE
1.1 This specification covers bare round copper-clad steel wire for electronic application.
1.2 Four classes of copper-clad steel wire are covered as follows:
1.2.1 Class 30HS—Nominal 30 % conductivity hard-drawn,
1.2.2 Class 30A—Nominal 30 % conductivity annealed,
1.2.3 Class 40HS—Nominal 40 % conductivity hard-drawn, and
1.2.4 Class 40A—Nominal 40 % conductivity annealed.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are in SI units.

ABSTRACT
This specification covers nickel-coated, round, copper-clad steel wire for electronic applications. The nickel-coated wire shall consist of the basis wire coated with nickel. Tensile strength and elongation of the nickel-coated wire shall conform to the specified requirements for the applicable size and class of copper-clad steel wire. The electrical resistivity shall not exceed the values specified. Continuity, adherence, and mass of the coating shall be determined. Necessary joints in the wire and rod prior to final coating and drawing shall be made.
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1.1 This specification covers nickel-coated, round, copper-clad steel wire for electronic application.
1.2 Nickel coatings in mass percentages of the total mass of the coated wire are as follows: 2, 4, 7, 10, and 27 %. Nickel-coated wire having different minimum mass percentages of nickel may be obtained by mutual agreement between the manufacturer and the purchaser. For information purposes, the thickness of coating in microinches provided by the percentages listed above is shown in .
1.3 Four classes of nickel-coated, copper-clad steel wire are covered as follows:
1.3.1 Class N30HS - Nominal 30 % conductivity, hard drawn.
1.3.2 Class N30A - Nominal 30 % conductivity, annealed.
1.3.3 Class N40HSNominal 40 % conductivity, hard drawn.
1.3.4 Class N40A - Nominal 40 % conductivity, annealed.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only, except for resistivity, where the SI units are to be regarded as the standard.
The following safety hazards caveat pertains only to the test method described in this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.  (Warning-Consideration should be given to toxicity and flammability when selecting solvent cleaners.)

ABSTRACT
This specification covers bare concentric-lay-stranded conductors made from bare, hard-drawn, round, aluminum-clad steel wires for generail use of electrical purposes. This specification does not apply to stranded conductors for reinforcement in ACSR conductors. The conductors shall conform to the required values of breaking strength, nominal diameter and number of individual wires, conductor diameter, mass per unit length and electrical resistance.. Physical and electrical tests shall be performed on the wires before stranding.
SCOPE
1.1 This specification covers bare concentric-lay-stranded conductors made from bare, hard-drawn, round, aluminum-clad steel wires of 20.3 % conductivity for general use of electrical purposes. This specification does not apply to stranded conductors for reinforcement in ACSR conductors.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

ABSTRACT
This specification covers annealed bare round copper-clad steel wire for the following applications: electrical, electronic, grounding, telecommunications, and other applications. Four types of copper-clad steel wires according to their electrical conductivities are included. The wire shall consist of a core of homogeneous open-hearth, electric-furnace, or basic-oxygen steel with a continuous outer cladding of copper thoroughly bonded to the core throughout. The copper-clad steel wire shall conform to the specified requirements for: tensile strength, elongation, dimension (diameter), adhesion and surface defects, joints, finish, copper thickness, density, and electrical resistivity. Methods for measurement, inspection, and testing such as torsion (twist) test are detailed.
SCOPE
1.1 This specification covers bare round copper-clad steel for the following applications: electrical, electronic, grounding, telecommunications, and other applications.
1.2 Four conductivities are covered as follows: 21, 30, 40, and 70 %.
1.3 Temper is designated as annealed.
1.4 The values stated in inch-pound or SI units are to be regarded separately as the standard. Each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. For conductor sizes designated by AWG, the requirements in SI units have been numerically converted from corresponding values stated or derived in inch-pound units. For conductor sizes designated by SI units only, the requirements are stated or derived in SI units.
The following precautionary statement pertains to the test method portion only, Section , of this specification: This standard does not purport to address all of the safety concerns, if any associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ABSTRACT
This specification covers tin-coated, copper-clad steel wires for electronic applications. The four classes of steel wires considered here are: hard-drawn wires with 30% nominal conductivity (Class T30HS); annealed wires with 30% nominal conductivity (Class T30A); hard-drawn wires with 40% nominal conductivity (Class T40HS); and annealed wires with 40% nominal conductivity (Class T40A). Specimens shall go through tests and shall adhere to specified requirements for dimensions, electrical resistivity, tensile strength, and coating continuity and adherence.
SCOPE
1.1 This specification covers tin-coated copper-clad steel wire for electronic application.
1.2 Four classes of tin-coated copper-clad steel wire are covered as follows:
1.2.1 Class T30HS Nominal 30 % conductivity, hard-drawn,
1.2.2 Class T30A - Nominal 30 % conductivity, annealed,
1.2.3 Class T40HS Nominal 40 % conductivity, hard-drawn, and
1.2.4 Class T40A - Nominal 40 % conductivity, annealed.
1.3 The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate. The values given in parentheses are for information only.
The following safety hazards caveat pertains only to the test method portion, Section , of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (Warning-Consideration should be given to toxicity and flammability when selecting solvent cleaners.)