ASTM B379-20

Standard Specification for Phosphorized Coppers´Refinery Shapes

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STANDARD published on 1.4.2020

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The information about the standard:

Designation standards: ASTM B379-20
Publication date standards: 1.4.2020
SKU: NS-991689
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Copper products

Annotation of standard text ASTM B379-20 :

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.

Keywords:
oxygen-free, phosphorized copper billet, phosphorized copper cakes, phosphorized copper wire bar,, ICS Number Code 77.150.30 (Copper products)

Additional information

1. Scope

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.

2. Referenced Documents

B193-20	Standard Test Method for Resistivity of Electrical Conductor Materials
B224-16(2022)	Standard Classification of Coppers
B577-19	Standard Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
B846-19a	Standard Terminology for Copper and Copper Alloys (Includes all amendments and changes 8/8/2019).
E255-23	Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E8-04	Standard Test Methods for Tension Testing of Metallic Materials
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E53-07	Standard Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
E62-89(1996)	Standard Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
B5-22	Standard Specification for High Conductivity Tough-Pitch Copper Refinery Shapes
E3-11(2017)	Standard Guide for Preparation of Metallographic Specimens

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