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ASTM B379-20

Current Revision

Standard Specification for Phosphorized Coppers—Refinery Shapes

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1.1 This specification establishes the requirements for phosphorized copper wire bars, billets, and cakes.

Note 1: Wire bars furnished under this specification do not conform in dimensions with that furnished under Specification B5.

1.2 Units—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 The following safety hazard caveat pertains only to the test method in 14.2 and 14.3 in this specification.

1.3.1 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.

1.4 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.


This specification establishes the requirements for phosphorized copper in refinery shapes such as wire bars, billets, and cakes. The product furnished shall be produced from one of the following copper UNS Nos.: C10300, C10800, C12000, C12200, and C14200. Billets shall be supplied sheared on one end with the other end flat or with both ends flat depending on the specified diameter. The product shall conform to the chemical composition requirements prescribed for copper and silver, phosphorus, and arsenic. The electrical mass resistivity for phosphorized copper in annealed condition is specified. The requirements for chemical analysis, reverse bend test (hydrogen embrittlement susceptibility), and microscopical examination are detailed including sampling and specimen preparation.


SDO ASTM: ASTM International
Document Number B379
Publication Date April 1, 2020
Language en - English
Page Count 5
Revision Level 20
Supercedes
Committee B05.07
Publish Date Document Id Type View
April 1, 2020 B0379-20 Revision
April 1, 2011 B0379-11 Revision
May 1, 2004 B0379-04 Revision
April 10, 1999 B0379-99 Revision
Nov. 15, 2018 B0379-11R18 Reaffirmation