ASTM B502-02

Standard Specification for Aluminum-Clad Steel Core Wire for Aluminum Conductors, Aluminum-Clad Steel Reinforced

SCOPE
1.1 This specification covers round, aluminum-clad steel core wire used for mechanical reinforcement in the manufacture of aluminum conductors, aluminum-clad steel reinforced.
1.2 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.

General Information

• Status: Historical
• Publication Date: 09-Oct-2002
• ICS: 29.060.10 - Wires
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.06 - Bi-Metallic Conductors

Relations

• Replaces: ASTM B502-98 - Standard Specification for Aluminum-Clad Steel Core Wire for Aluminum Conductors, Aluminum-Clad Steel Reinforced
• Effective Date: 10-Oct-2002
• Replaced By: ASTM B502-02(2007) - Standard Specification for Aluminum-Clad Steel Core Wire for Aluminum Conductors, Aluminum-Clad Steel Reinforced
• Effective Date: 01-Oct-2007
• Referred By: ASTM B193-20 - Standard Test Method for Resistivity of Electrical Conductor Materials
• Effective Date: 10-Oct-2002
• Referred By: ASTM B258-18 - Standard Specification for Standard Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors
• Effective Date: 10-Oct-2002
• Referred By: ASTM B415-16(2021) - Standard Specification for Hard-Drawn Aluminum-Clad Steel Wire
• Effective Date: 10-Oct-2002

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: B 502 – 02
Standard Specification for
Aluminum-Clad Steel Core Wire for Aluminum Conductors,
1
Aluminum-Clad Steel Reinforced
This standard is issued under the fixed designation B 502; 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.
1. Scope 4. Materials and Manufacture
1.1 This specification covers round, aluminum-clad steel 4.1 The base metal shall be steel produced by the open-
core wire used for mechanical reinforcement in the manufac- hearth, electric-furnace, or basic-oxygen process and shall be
ture of aluminum conductors, aluminum-clad steel reinforced. of such composition that the finished clad wire shall have the
1.2 The values stated in inch-pound or SI units are to be properties and characteristics prescribed in this specification.
regarded separately as the standard. Each system shall be used 4.2 The aluminum used for cladding shall have a purity and
independently of the other. Combining values from the two quantity sufficient to meet thickness and resistance require-
systems may result in nonconformance with the specification. ments of this specification (see 7.1 and 9.1).
ForconductorsizesdesignatedbyAWG,therequirementsinSI
5. Tensile Properties
units have been numerically converted from corresponding
5.1 Requirements— The aluminum-clad steel core wire
values stated or derived in inch-pound units. For conductor
sizes designated by SI units only, the requirements are stated or shall conform to the tensile requirements prescribed inTable 1.
In computing stress at 1 % extension and ultimate tensile
derived in SI units.
strength, the actual diameter of the finished wire shall be used.
2. Referenced Documents
5.2 Elongation Test— The elongation shall be determined
2.1 The following documents of the issue in effect on date by an extensometer suitable for measuring elongation in 10.0
of material purchase form a part of this specification to the in. (250 mm) and equipped with a vernier or other instrument
extent referenced herein. reading to 0.001 in. (0.025 mm). It shall be attached to the test
2.2 ASTM Standards: specimen at a load equal to the initial tensile stress shown in
B 193 Test Method for Resistivity of Electrical Conductor Table 2. At this load the extensometer shall be adjusted to the
2
Materials initial setting shown in Table 2. Upon application of further
3
E 8 Test Methods forTensionTesting of Metallic Materials load, the tension shall be read at an extensometer reading of
1.0 % to determine conformance with the requirement in Table
3. Ordering Information
1. Further elongation shall be observed while applying a
3.1 Orders for material under this specification shall include
tension load to the specimen. The elongation thus determined
the following information: shall be not less than 1.5 % in 10.0 in. (250 mm). A test in
3.1.1 Quantity of each size,
which the extensometer reading is less than 1.5 % shall be
3.1.2 Wire size: diameter in inches (see 6.1) disregarded if the fracture occurs less than 1.0 in. (25 mm)
3.1.3 Package size: (see 17.1),
from either attachment. In this case, another specimen from the
3.1.4 Special packaging and package marking if required same reel or coil shall be tested.
(see 16.1), and
5.3 The tension tests shall be made in accordance with Test
3.1.5 Place of inspection if other than place of manufacture Methods E 8. The method for determining elongation is de-
(see 14.1).
scribed in the Procedures Section of Test Methods E 8.
6. Dimensions and Permissible Variations
1
This specification is under the jurisdiction of ASTM Committee B01 on
6.1 The size shall be expressed by the wire diameter in
Electrical Conductors and is the direct responsibility of Subcommittee B01.06 on
decimals of an inch to the nearest 0.0001 in. (0.003 mm).
Composite Conductors.
Current edition approved Oct. 10, 2002. Published October 2002. Originally
published as B 502 – 70. Last previous edition B 502 – 98
2
Annual Book of ASTM Standards, Vol 02.03.
3
Annual Book of ASTM Standards, Vol 03.01.
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B 502 – 02
TABLE 1 Tensile Requirements
7.2 Measurements shall be made by using suitable electrical
Nominal Stress at 1.0 % Ultimate Tensile Elongation, indicating instruments operating on the permeameter principle,
Diameter, Extension min, Strength, min, min, %, 10 in.
or by direct measurement. For referee purposes, direct mea-
in. (mm) psi (MPa) psi (MPa) (250 mm)
surement shall be used to determine aluminum t
...