ASTM B5-22

Standard Specification for High Conductivity Tough-Pitch Copper Refinery Shapes

ABSTRACT
This specification establishes the requirements for high conductivity, tough-pitch, copper wire bars, cakes, slabs, billets, ingots, and ingot bars. Copper wires under this specification include UNS C113000, C11400, C11500 and C11600, C12000, C12200, C12300, and C14500. The maximum values of mass resistivity for wire bars, cakes, slabs, and billets, for electrical use and for other uses, shall conform to the specified requirements. Samples for the electrical resistivity test of electrolytic copper, electrorefined copper, electrowon copper, and fire-refined copper shall be fabricated into a rod. The external oxide shall be removed, the rod cold drawn into a wire of a specific diameter, and cut into sampling lengths. The resulting specimen shall be annealed and quickly cooled in an inert atmosphere. The mean resistivity shall be determined as the mean of the observations from the test on the wires.
SIGNIFICANCE AND USE
14.1 Calculated values shall be rounded to the specified number of places in accordance with Practice E29.
SCOPE
1.1 This specification establishes the requirements for high conductivity, tough-pitch, copper wire bars, cakes, slabs, billets, ingots, and ingot bars.  
1.2 Copper under this specification corresponds to the designations “ETP” (UNS C11000) and “FRHC” (UNS C11020) as shown in Classification B224. These coppers may also be used to produce coppers corresponding to the following:    
Copper UNS No.  
Classification B224 Designation    
C11300, C11400, C11500, and C11600  
STP    
C12000  
DLP    
C12200  
DHP    
C12300  
DHPS  
C14520  
DPTE  
1.3 Although this specification includes certain UNS designations as described in Practice E527, these designations are for cross reference only and are not specification requirements. Therefore, in case of conflict, this ASTM specification shall govern.  
1.4 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.  
1.4.1 Exception—Electrical resistivity is expressed in SI units.  
1.5 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: 30-Sep-2022
• 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: B5 −22
Standard Specification for
1
High Conductivity Tough-Pitch Copper Refinery Shapes
This standard is issued under the fixed designation B5; 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.Asuperscript
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* 2. Referenced Documents
2
1.1 This specification establishes the requirements for high 2.1 ASTM Standards:
conductivity, tough-pitch, copper wire bars, cakes, slabs, B193 Test Method for Resistivity of Electrical Conductor
billets, ingots, and ingot bars. Materials
B224 Classification of Coppers
1.2 Copper under this specification corresponds to the
B846 Terminology for Copper and Copper Alloys
designations “ETP” (UNS C11000) and “FRHC” (UNS
E29 Practice for Using Significant Digits in Test Data to
C11020) as shown in Classification B224. These coppers may
Determine Conformance with Specifications
also be used to produce coppers corresponding to the follow-
E53 Test Method for Determination of Copper in Unalloyed
ing:
3
Copper by Gravimetry (Withdrawn 2022)
Copper UNS No. Classification B224 Designation
E255 Practice for Sampling Copper and Copper Alloys for
C11300, C11400, C11500, and C11600 STP the Determination of Chemical Composition
C12000 DLP
E478 Test Methods for ChemicalAnalysis of CopperAlloys
C12200 DHP
E527 Practice for Numbering Metals and Alloys in the
C12300 DHPS
C14520 DPTE Unified Numbering System (UNS)
1.3 Although this specification includes certain UNS desig-
3. Terminology
nations as described in Practice E527, these designations are
for cross reference only and are not specification requirements. 3.1 For definitions of terms related to copper and copper
Therefore, in case of conflict, this ASTM specification shall alloys, refer to Terminology B846. For definitions of terms
govern. related to standard classification of coppers, refer to Classifi-
cation B224.
1.4 Units—The values stated in inch-pound units are to be
regarded as standard. The values given in parentheses are
4. Ordering Information
mathematical conversions to SI units that are provided for
4.1 Include the following information, as applicable:
information only and are not considered standard.
4.1.1 ASTM Specification Designation and year of issue;
1.4.1 Exception—Electrical resistivity is expressed in SI
4.1.2 Copper UNS No. Designation;
units.
4.1.3 Quantity, shape, and dimension of each piece, and
1.5 This international standard was developed in accor-
weight;
dance with internationally recognized principles on standard-
4.1.4 Should cakes, slabs, or billets be ordered for electrical
ization established in the Decision on Principles for the
use, it must be stated in the contract or purchase order.
Development of International Standards, Guides and Recom-
4.1.5 Silver content in silver-bearing shapes, when required,
mendations issued by the World Trade Organization Technical
in troy oz per short ton.
Barriers to Trade (TBT) Committee.
1 2
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and Copper Alloys and is the direct responsibility of Subcommittee B05.07 on contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Refined Copper. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 1, 2022. Published October 2022. Originally the ASTM website.
3
approved in 1911. Last previous edition approved in 2016 as B5 – 16. DOI: The last approved version of this historical standard is referenced on
10.1520/B0005-22. 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

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B5−22
5. Materials and Manufacture beconsideredwithinthespecification,withnoindividualsilver
analysis to exceed 35 troy oz per short ton (0.12 %).
5.1 Materials:
5.1.1 The material of manufacture shall be a form (copper
7. Physical Property Requirements
wire bar, cake, slabs, billets, ingots, and ingot bars) of Copper
7.1 Electrical Resistivity:
Alloy “ETP” (UNS C11000) or “FRHC” (UNS C11020) of
7.1.1 The maximum mass resistivity for wire bars, cakes,
such purity and soundness as to be suitable for processing into
slabs, and billets for electrical use shall be 0.153 28
the
...

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: B5 − 16 B5 − 22
Standard Specification for
1
High Conductivity Tough-Pitch Copper Refinery Shapes
This standard is issued under the fixed designation B5; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification establishes the requirements for high conductivity, tough-pitch, copper wire bars, cakes, slabs, billets, ingots,
and ingot bars.
1.2 Copper under this specification corresponds to the designations “ETP” (UNS C11000) and “FRHC” (UNS C11020) as shown
in Classification B224. These coppers may also be used to produce coppers corresponding to the following:
Copper UNS No. Classification B224 Designation
C11300, C11400, C11500, and C11600 STP
C12000 DLP
C12200 DHP
C12300 DHPS
C14520 DPTE
1.3 Although this specification includes certain UNS designations as described in Practice E527, these designations are for cross
reference only and are not specification requirements. Therefore, in case of conflict, this ASTM specification shall govern.
1.4 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.
1.4.1 Exception—Electrical resistivity is expressed in SI units.
1.5 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:
B193 Test Method for Resistivity of Electrical Conductor Materials
B224 Classification of Coppers
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 Oct. 1, 2016Oct. 1, 2022. Published November 2016October 2022. Originally approved in 1911. Last previous edition approved in 20112016
as B5 – 11.B5 – 16. DOI: 10.1520/B0005-16.10.1520/B0005-22.
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’sstandard’s Document Summary page on the ASTM website.
*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 ----------------------
B5 − 22
B846 Terminology for Copper and Copper Alloys
B950 Guide for Editorial Procedures and Form of Product Specifications for Copper and Copper Alloys
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3
E53 Test Method for Determination of Copper in Unalloyed Copper by Gravimetry (Withdrawn 2022)
E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E478 Test Methods for Chemical Analysis of Copper Alloys
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. Terminology
3.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846. For definitions of terms related to
standard classification of coppers, refer to Classification B224.
4. Ordering Information
4.1 Include the following information, as applicable:
4.1.1 ASTM Specification Designation and year of issue;
4.1.2 Copper UNS No. Designation;
4.1.3 Quantity, shape, and dimension of each piece, and weight;
4.1.4 Should cakes, slabs, or billets be ordered for electrical use, it must be stated in the contract or purchase order.
4.1.5 Silver content in silver-bearing shapes, when required, in troy oz per short ton.
5. Materials and Manufacture
5.1 Materials:
5.1.1 The material of manufacture shall be a form (copper wire bar, cake, slabs, billets, ingots, and ingot bars) of Copper Alloy
“ETP” (UNS C11000) or “FRHC” (UNS C11020) of such purity and soundness as to be suitable for processing into the prescribed
herein.
5.1.2 When specified in the contract or purchase order
...