ASTM B566-04a(2011)

Standard Specification for Copper-Clad Aluminum Wire

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.

General Information

• Status: Historical
• Publication Date: 31-Mar-2011
• ICS: 29.060.10 - Wires
• Technical Committee: B01 - Electrical Conductors
• Drafting Committee: B01.06 - Bi-Metallic Conductors

Relations

• Replaces: ASTM B566-04a - Standard Specification for Copper-Clad Aluminum Wire
• Effective Date: 01-Apr-2011
• Referred By: ASTM B193-20 - Standard Test Method for Resistivity of Electrical Conductor Materials
• Effective Date: 01-Apr-2011

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:B566 −04a(Reapproved 2011)
Standard Specification for
1
Copper-Clad Aluminum Wire
This standard is issued under the fixed designation B566; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope 3.1.1 lot—a lot is any amount of wire of one class and size
presented for acceptance at one time; such amount, however,
1.1 This specification covers bare round copper-clad alumi-
not to exceed 100 production units.
num wire for electrical applications.
3.1.2 sample—a quantity of production units (coils, reels,
1.2 Four classes of copper-clad aluminum wire are covered
andsoforth)selectedatrandomfromthelotforthepurposeof
as follows:
determining conformance of the lot to the requirements of this
Class 10A—Nominal 10 volume % copper, annealed.
specification.
Class 15A—Nominal 15 volume % copper, annealed.
3.1.3 specimen—a length of wire removed for test purposes
Class 10H—Nominal 10 volume % copper, hard-drawn.
from any individual production unit of the sample.
Class 15H—Nominal 15 volume % copper, hard-drawn.
1.3 The values stated in inch-pound units are to be regarded
4. Ordering Information
as standard. The values given in parentheses are mathematical
4.1 Ordersformaterialunderthisspecificationshallinclude
conversions to SI units that are provided for information only
the following information:
and are not considered standard.
4.1.1 Quantity of each size and class;
1.3.1 Exception—ThevaluesstatedinSIunitsforresistivity
4.1.2 Wire size, diameter in inches (see Section 7 and Table
and density are to be regarded as standard.
1);
2. Referenced Documents 4.1.3 Class of wire (see 1.2 and Table 1);
4.1.4 Packaging and shipping (Section 14 and packaging
2.1 The following documents of the issue in effect on date
inspection if required, 13.1); and
of material purchase form a part of this specification to the
4.1.5 Place of inspection (see 13.1).
extent referenced herein:
2
2.2 ASTM Standards:
5. Materials and Manufacture
B193Test Method for Resistivity of Electrical Conductor
5.1 The wire shall consist of a core of aluminum with a
Materials
continuous outer cladding of copper thoroughly bonded to the
B258 Specification for Nominal Diameters and Cross-
core throughout and shall be of such quality as to meet the
SectionalAreasofAWGSizesofSolidRoundWiresUsed
requirements of this specification.
as Electrical Conductors
3
2.3 National Institute of Standards and Technology:
6. General Requirements
NBS Handbook 100— Copper Wire Tables
6.1 Tensile Strength and Elongation—The copper-clad alu-
3. Terminology minum wire shall conform to the tensile strength and elonga-
tion requirements of Table 1. For intermediate diameters not
3.1 Definitions of Terms Specific to This Standard:
listed in Table 1, the elongation requirements of the next
smaller size shall apply; in the case of tensile strength the
1
This specification is under the jurisdiction of ASTM Committee B01 on
requirements of the next larger size shall apply.
Electrical Conductors and is the direct responsibility of Subcommittee B01.06 on
Bi-Metallic Conductors.
6.2 Resistivity—The electrical resistivity at a temperature of
Current edition approved April 1, 2011. Published September 2011. Originally
20°C shall not exceed the values prescribed in Table 2. See
approved in 1972. Last previous edition approved in 2004 as B566–04a. DOI:
10.1520/B0566-04AR11. Note 1 for calculating electrical resistance.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
NOTE 1—Relationships which may be useful in connection with the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
values of electrical resistivity prescribed in this specification are shown in
Standards volume information, refer to the standard’s Document Summary page on
Table 3. Resistivity units are based on the InternationalAnnealed Copper
the ASTM website.
2
1
3
Available from National Institute of Standards and Technology (NIST), 100 Standard (IACS) adopted by IEC in 1913, which is ⁄58Ω·mm /m and the
2
Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov. value of 0.15328 Ω·g/m at 20°C are, respectively, the international
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B566−04a (2011)
TABLE 1 Tensile and Elongation Requirements for Copper-Clad
6.3 Cohesion—The copper-clad aluminum wire, when
Aluminum Wire
tested in accordance with 10.4, shall
...