ASTM B355-11(2016)
(Specification)Standard Specification for Nickel-Coated Soft or Annealed Copper Wire
Standard Specification for Nickel-Coated Soft or Annealed Copper Wire
ABSTRACT
This specification covers nickel-coated, soft or annealed, round copper wire for use in electrical equipment. Five classes of wire are covered as follows: Class 2, Class 4, Class 7, Class 10, and Class 27. Properties like elongation, resistivity and dimensions of the wire shall be determined. The continuity of the coating shall be determined by the sodium polysulfide test. Adherence of the coating shall be determined by wrapping and immersion tests.
SCOPE
1.1 This specification covers nickel-coated, soft or annealed, round copper wire for use in electrical equipment.
1.2 Five classes of wire are covered as follows:
1.2.1 Class 2—Wire whose nickel coating is at least 2 % of the total weight of the coated wire.
1.2.2 Class 4—Wire whose nickel coating is at least 4 % of the total weight of the coated wire.
1.2.3 Class 7—Wire whose nickel coating is at least 7 % of the total weight of the coated wire.
1.2.4 Class 10—Wire whose nickel coating is at least 10 % of the total weight of the coated wire.
1.2.5 Class 27—Wire whose nickel coating is at least 27 % of the total weight of the coated wire.
Note 1: For information purposes, the thickness of coating in microinches provided by the percentages listed in 1.2 is shown in Table 2.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parenthesis are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3.1 Exceptions—The SI values for density, resistivity, and volume are to be regarded as standard.
1.4 This hazard statement applies only to Section 7, Test Methods, and to the Appendix 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.
General Information
Relations
Standards Content (Sample)
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.
Designation:B355 −11 (Reapproved 2016)
Standard Specification for
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Nickel-Coated Soft or Annealed Copper Wire
This standard is issued under the fixed designation B355; 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.
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1. Scope 2.2 ASTM Standards:
B49Specification for Copper Rod for Electrical Purposes
1.1 This specification covers nickel-coated, soft or
B193Test Method for Resistivity of Electrical Conductor
annealed, round copper wire for use in electrical equipment.
Materials
1.2 Five classes of wire are covered as follows:
B258 Specification for Nominal Diameters and Cross-
1.2.1 Class 2—Wire whose nickel coating is at least 2% of
SectionalAreasofAWGSizesofSolidRoundWiresUsed
the total weight of the coated wire.
as Electrical Conductors
1.2.2 Class 4—Wire whose nickel coating is at least 4% of
E75Test Methods for Chemical Analysis of Copper-Nickel
the total weight of the coated wire. 3
and Copper-Nickel-Zinc Alloys (Withdrawn 2010)
1.2.3 Class 7—Wire whose nickel coating is at least 7% of
2.3 NIST:
the total weight of the coated wire.
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NBSHandbook 100—Copper Wire Tables
1.2.4 Class 10—Wire whose nickel coating is at least 10%
of the total weight of the coated wire.
3. Ordering Information
1.2.5 Class 27—Wire whose nickel coating is at least 27%
3.1 Ordersformaterialunderthisspecificationshallinclude
of the total weight of the coated wire.
the following information:
NOTE 1—For information purposes, the thickness of coating in micro-
3.1.1 Quantity of each size,
inches provided by the percentages listed in 1.2 is shown in Table 1.
3.1.2 Wire size, diameter in inches (see 5.3 and Table 1),
1.3 Thevaluesstatedininch-poundunitsaretoberegarded
3.1.3 Class of coating (Section 1 and Table 1),
as standard. The values given in parenthesis are mathematical
3.1.4 Type of copper, if special (see 4.2),
conversions to SI units that are provided for information only
3.1.5 Package size (Section 10),
and are not considered standard.
3.1.6 Special packaging marking, if required, and
1.3.1 Exceptions—The SI values for density, resistivity, and
3.1.7 Place of inspection (see 9.1).
volume are to be regarded as standard.
1.4 This hazard statement applies only to Section 6, Test 4. Material
Methods, and to the Appendix of this specification. This
4.1 The material shall be nickel-coated wire (Explanatory
standard does not purport to address all of the safety concerns,
Note 1), of such quality and purity that the finished product
if any, associated with its use. It is the responsibility of the user
shall have the properties and characteristics prescribed in this
of this standard to establish appropriate safety and health
specification.
practices and determine the applicability of regulatory limita-
NOTE 2—Specification B49 defines copper suitable for use:
tions prior to use.
4.2 Copper of special qualities, forms, or types, as may be
2. Referenced Documents agreed upon between the manufacturer and the purchaser, and
which will conform to the requirements prescribed in this
2.1 The following documents of the issue in effect at the
specification may also be used.
time of reference form a part of these methods to the extent
referenced herein:
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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This specification is under the jurisdiction of ASTM Committee B01 on Standards volume information, refer to the standard’s Document Summary page on
Electrical Conductors and is the direct responsibility of B01.04 on Conductors of the ASTM website.
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Copper and Copper Alloys. The last approved version of this historical standard is referenced on
Current edition approved Oct. 1, 2016. Published October 2016. Originally www.astm.org.
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approved in 1960. Last previous edition approved in 20116 as B355–11. DOI: Available from NationalTechnical Information Service (NTIS), 5301 Shawnee
10.1520/B0355-11R16. Rd., Alexandria, VA 22312, http://www.ntis.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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B355−11 (2016)
TABLE 1 Tensile Requirements
Elongation in Thickness of Coating, µin.
Area at 20°C (68°F)
10 in., min,% (For Information Only)
Classes Class 2, Class 4, Class 7, Class 10, Class 2
...
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