ASTM B415-98(2002)
(Specification)Standard Specification for Hard-Drawn Aluminum-Clad Steel Wire
Standard Specification for Hard-Drawn 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 B 502.)
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 the standard. The metric equivalents of inch-pound units may be approximate.
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Designation: B 415 – 98 (Reapproved 2002)
Standard Specification for
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Hard-Drawn Aluminum-Clad Steel Wire
This standard is issued under the fixed designation B 415; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4. Material
1.1 This specification covers four conductivities of bare, 4.1 The wire shall be composed of a steel core with a
hard-drawn, round, aluminum-clad steel wire for general use substantially uniform and continuous aluminum covering thor-
forelectricalpurposesinsizes0.2043to0.0808in.incl(4to12 oughly bonded to it. The drawn wire shall have the properties
AWG)(Note1).Thisspecificationdoesnotapplytowiresused and characteristics prescribed in this specification.
as reinforcement in ACSR conductors. (See Specification
5. Tensile Properties
B 502.)
5.1 The wire shall conform to the tensile requirements
NOTE 1—Wire ordered to this specification is not intended for redraw-
prescribed in Table 1 (Note 2). In computing tensile strength,
ing. If wire is desired for this purpose, the manufacturer shall be
the actual diameter of the finished wire shall be used.
consulted.
NOTE 2—The approximate properties of standard AWG sizes of hard-
1.2 The values stated in inch-pound units are to be regarded
drawn aluminum-clad steel wire are shown in Table 2 for the information
as the standard. The metric equivalents of inch-pound units
of the user of this specification.
may be approximate.
5.2 Wire of a nominal diameter that exceeds a size listed in
2. Referenced Documents
Table 1 shall conform to the tensile requirements of the next
2.1 The following documents of the issue in effect on the larger diameter.
dateofmaterialpurchaseformapartofthisSpecificationtothe 5.3 Elongation shall be determined by an extensometer
extent referenced herein. suitable for measuring elongation in 10 in. (250 mm) and
2.2 ASTM Standards: equipped with a vernier reading to 0.01 in. (0.25 mm). It shall
B 193 Test Method for Resistivity of Electrical Conductor be attached to the test specimen at a tensile load of 10 % of the
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Materials ratedstrength.Theelongationshallbeobservedwhileapplying
B 502 SpecificationforAluminum-CladSteelCoreWirefor a tension load to the specimen. The reading at the time of
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Aluminum Conductors,Aluminum-Clad Steel Reinforced fracture shall be taken as the elongation of the specimen. The
elongation thus determined shall be not less than 1.5 % in 10
3. Ordering Information
in. Tests shall be disregarded in which the extensometer
3.1 Orders for material under this specification shall include
reading is less than 1.5 % and in which the fracture does not
the following information: occur between the extensometer attachments and at least 1 in.
3.1.1 Quantity and conductivity of each size,
(25.0 mm) from the two attachments. In this case another
3.1.2 Wire size: diameter in inches (see 7.1 and Table 1), sample from the same reel or coil shall be tested.
3.1.3 Method of measuring elongation if other than 5.3
5.4 When agreed upon by the manufacturer and the pur-
(optional), chaser, the elongation may be determined by measurements
3.1.4 Special package marking if required (Section 16), and
made between the jaws of the testing machine. The zero length
3.1.5 Package size (see 17.1), and shall be the distance between the jaws when a load equal to
3.1.6 Place of inspection if other than place of manufacture
10 % of the specified tensile strength shall have been applied
(Section 14). and the final length shall be the distance between the jaws at
thetimeofrupture.Thezerolengthshallbeasnear60in.(1.52
m) as practicable. The elongation thus determined shall be not
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This specification is under the jurisdiction of ASTM Committee B01 on
lessthan1.4 %.Testsinwhichtheelongationislessthan1.4 %
Electrical Conductors and is the direct responsibility of Subcommittee B01.06 on
Composite Conductors.
and in which the fracture occurs at or within 1 in. (25.4 mm)
CurrenteditionapprovedMarch10,1998.PublishedSeptember1998.Originally
of the jaws shall be disregarded. In this case another sample
published as B415 – 64 T. Last previous edition B415 –92.
2 from the same reel or coil shall be tested.
Annual Book of ASTM Standards, Vol 02.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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B 415 – 98 (2002)
TABLE 1 Tensile Requirements
20 % 27 % 30 % 40 %
Nominal Size,
Diameter, in. AWG
psi MPa psi MPa psi MPa psi MPa
0.2043 4 155 000 1070
...
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