ASTM B379-20

Standard Specification for Phosphorized Coppers—Refinery Shapes

ABSTRACT
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.
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.

General Information

• Status: Published
• Publication Date: 31-Mar-2020
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.07 - Refined Copper

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:B379 −20
Standard Specification for
1
Phosphorized Coppers—Refinery Shapes
This standard is issued under the fixed designation B379; 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.
1. Scope* B577TestMethodsforDetectionofCuprousOxide(Hydro-
gen Embrittlement Susceptibility) in Copper
1.1 Thisspecificationestablishestherequirementsforphos-
B846Terminology for Copper and Copper Alloys
phorized copper wire bars, billets, and cakes.
E3Guide for Preparation of Metallographic Specimens
NOTE1—Wirebarsfurnishedunderthisspecificationdonotconformin
E29Practice for Using Significant Digits in Test Data to
dimensions with that furnished under Specification B5.
Determine Conformance with Specifications
1.2 Units—The values stated in inch-pound units are to be
E53Test Method for Determination of Copper in Unalloyed
regarded as standard. The values given in parentheses are
Copper by Gravimetry
mathematical conversions to SI units that are provided for
E62Test Methods for Chemical Analysis of Copper and
3
information only and are not considered standard.
CopperAlloys(PhotometricMethods)(Withdrawn2010)
E255Practice for Sampling Copper and Copper Alloys for
1.3 The following safety hazard caveat pertains only to the
the Determination of Chemical Composition
test method in 14.2 and 14.3 in this specification.
1.3.1 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 For definitions of terms related to copper and copper
responsibility of the user of this standard to establish appro-
alloys, refer to Terminology B846.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 copper, oxygen-free—electrolytic copper produced
1.4 This international standard was developed in accor-
without the use of metallic or metalloidal deoxidizers, free of
dance with internationally recognized principles on standard-
cuprous oxide as determined by metallographic examination at
ization established in the Decision on Principles for the
75× under polarized light.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4. Ordering Information
Barriers to Trade (TBT) Committee.
4.1 Contracts or purchase orders for product under this
specification should include the following information:
2. Referenced Documents
4.1.1 ASTM designation and year of issue (for example,
2
2.1 ASTM Standards:
B379–XX);
B5Specification for High ConductivityTough-Pitch Copper
4.1.2 Copper UNS Number (for example, C10800);
Refinery Shapes
4.1.3 Shape required: wire bar, billet or cake;
B193Test Method for Resistivity of Electrical Conductor
4.1.3.1 Billet end type,
Materials
4.1.4 Dimensions and tolerances (Section 10); and
B224Classification of Coppers
4.1.5 Quantity: total weight or number of pieces for each
shape, size.
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
4.2 The following are optional and should be specified in
and Copper Alloys and is the direct responsibility of Subcommittee B05.07 on
the contract or purchase order when required:
Refined Copper.
4.2.1 Hydrogen embrittlement test (Section 8),
Current edition approved April 1, 2020. Published April 2020. Originally
approvedin1962.Lastpreviouseditionapprovedin2018asB379–11(2018).DOI: 4.2.2 Certification (Section 19), and
10.1520/B0379–20.
4.2.3 Test report (Section 20).
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B379−20
TABLE 1 Chemical Requirements
Composition, %
Copper UNS No. Type Phosphorus Arsenic
Copper (Including
Silver), min
min max min max
A
C10300 OFXLP 99.95 0.001 0.005 . . . . . .
A
C10800 OFLP 99.95 0.005 0.012 . . . . . .
C12000 DLP 99.90 0.004 0.012 . . . . . .
C12200 DHP 99.9 0.015 0.040 . . . . . .
B
C14200 DPA 99.4 0.015 0.040 0.15 0.50
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B379 − 11 (Reapproved 2018) B379 − 20
Standard Specification for
1
Phosphorized Coppers—Refinery Shapes
This standard is issued under the fixed designation B379; 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 (´) indicates an editorial change since the last revision or reapproval.
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—Values The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are
mathematical conversions to SI units, whichunits 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
2
2.1 ASTM Standards:
B5 Specification for High Conductivity Tough-Pitch Copper Refinery Shapes
B193 Test Method for Resistivity of Electrical Conductor Materials
B224 Classification of Coppers
B577 Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
B846 Terminology for Copper and Copper Alloys
E3 Guide for Preparation of Metallographic Specimens
E8/E8M Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E53 Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
3
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)
E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
3. Terminology
3.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 copper, oxygen-free—electrolytic copper produced without the use of metallic or metalloidal deoxidizers, free of cuprous
oxide as determined by metallographic examination at 75× under polarized light.
4. Ordering Information
4.1 Contracts or purchase orders for product under this specification should include the following information:
4.1.1 ASTM designation and year of issue (for example, B379 – XX);
1
This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.07 on Refined
Copper.
Current edition approved Nov. 15, 2018April 1, 2020. Published November 2018April 2020. Originally approved in 1962. Last previous edition approved in 20112018
as B379–11. –11 (2018). DOI: 10.1520/B0379–11R18.10.1520/B0379–20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B379 − 20
4.1.2 Copper UNS Number (for example, C10800);
4.1.3 Shape required: wire bar, billet or cake;
4.1.3.1 Billet end type,
4.1.4 Dimensions and tolerances (Section 10); and
4.1.5 Quantity;Quantity: total weight or number of pieces for each shape, size.
4.2 The following are optional and should be specified in the contract or purchase order when required:
4.2.1 Hydrogen embrittlement test (Section 8),
4.2.2 Certification (Section 19), and
4.2.3 Test report (S
...