ASTM B49-20
(Specification)Standard Specification for Copper Rod for Electrical Purposes
Standard Specification for Copper Rod for Electrical Purposes
ABSTRACT
This specification covers the requirements for rod drawing stock produced from electrolytic tough-pitch or oxygen-free coppers and is suitable for further fabrication into electrical conductors. The rod shall be fabricated from copper of such quality and purity. Copper of special qualities, forms, or types, as agreed upon between the manufacturer and the purchaser and that will conform to the requirements prescribed in this specification may also be used. The specimen shall have the following chemical composition: tellurium, selenium, bismuth, antimony, arsenic, tin, lead, iron, nickel, sulfur, silver, oxygen, cadmium, phosphorus, zinc, and manganese. Embrittlement test shall be performed on the specimen to reflect propensity towards hydrogen embrittlement and shall be performed only on oxygen-free copper. The rod shall be free of defects, but blemishes of a nature that do not interfere with the intended application are acceptable.
SCOPE
1.1 This specification covers the requirements for rod in diameters from 1/4 in. to 13/8 in. (6.4 mm to 35 mm) produced from high conductivity coppers listed in Table 1, namely, electrolytic tough-pitch, oxygen-free, or fire-refined high conductivity coppers, and are suitable for further fabrication into electrical conductors.
1.2 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 hazards caveat pertains only to Section 13. 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.
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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:B49 −20
Standard Specification for
1
Copper Rod for Electrical Purposes
ThisstandardisissuedunderthefixeddesignationB49;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.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* B115Specification for Electrolytic Copper Cathode
B170Specification for Oxygen-Free Electrolytic Copper—
1.1 This specification covers the requirements for rod in
Refinery Shapes
1 3
diameters from ⁄4in. to 1 ⁄8in. (6.4 mm to 35 mm) produced
B193Test Method for Resistivity of Electrical Conductor
from high conductivity coppers listed in Table 1, namely,
Materials
electrolytic tough-pitch, oxygen-free, or fire-refined high con-
B224Classification of Coppers
ductivity coppers, and are suitable for further fabrication into
B577TestMethodsforDetectionofCuprousOxide(Hydro-
electrical conductors.
gen Embrittlement Susceptibility) in Copper
1.2 Thevaluesstatedininch-poundunitsaretoberegarded
B846Terminology for Copper and Copper Alloys
as standard. The values given in parentheses are mathematical
E8/E8MTest Methods for Tension Testing of Metallic Ma-
conversions to SI units that are provided for information only
terials
and are not considered standard.
E18Test Methods for Rockwell Hardness of Metallic Ma-
1.3 The following safety hazards caveat pertains only to
terials
Section13.Thisstandarddoesnotpurporttoaddressallofthe E29Practice for Using Significant Digits in Test Data to
safety concerns, if any, associated with its use. It is the
Determine Conformance with Specifications
responsibility of the user of this standard to establish appro- E53Test Method for Determination of Copper in Unalloyed
priate safety, health, and environmental practices and deter-
Copper by Gravimetry
mine the applicability of regulatory limitations prior to use. E478Test Methods for ChemicalAnalysis of CopperAlloys
1.4 This international standard was developed in accor-
E1004Test Method for Determining Electrical Conductivity
dance with internationally recognized principles on standard- Using the Electromagnetic (Eddy Current) Method
ization established in the Decision on Principles for the
E1606Practice for Electromagnetic (Eddy Current) Exami-
Development of International Standards, Guides and Recom-
nation of Copper andAluminum Redraw Rod for Electri-
mendations issued by the World Trade Organization Technical cal Purposes
Barriers to Trade (TBT) Committee.
E2575Test Method for Determination of Oxygen in Copper
and Copper Alloys by Inert Gas Fusion
2. Referenced Documents 3
2.3 Other Document:
2.1 The following documents in the current issue of the
NBS Handbook 100Copper Wire Tables
BookofStandardsformapartofthisspecificationtotheextent
3. Terminology
referenced herein and define materials suitable for use in rod
manufacture:
3.1 For definitions of general terms relating to copper and
2
copper alloys refer to Terminology B846.
2.2 ASTM Standards:
B5Specification for High ConductivityTough-Pitch Copper
4. Ordering Information
Refinery Shapes
4.1 Orders for rod under this specification shall include the
following information:
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
4.1.1 ASTM designation and year of issue,
and Copper Alloys and is the direct responsibility of Subcommittee B05.07 on
Refined Copper. 4.1.2 Quantity of each size,
Current edition approved April 15, 2020. Published May 2020. Originally
4.1.3 UNS designation and requirements of copper (Sec-
approved in 1923. Last previous edition approved in 2017 as B49-17. DOI:
tions5–10),
10.1520/B0049-20.
2
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
3
Standards volume information, refer to the standard’s Document Summary page on Available from NationalTechnical Information Service (NTIS), 5301 Shawnee
the ASTM website. Rd., Alexandria, VA 22312, http://www.ntis.gov.
*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 ----------------------
B49−20
A
TABLE 1 Chemical Composition
4.1.4 Finish (Sections 9 and 10),
UNS Number C11000 C11040 C10100 C10200
4.1.5 Package with or without joints (see 5.3),
B C
Copper Type ETP ETP OFE OF
4.1.6 Rod diameter (see 9.2),
D E E D
Copper, min 99.90 % 99.90 % 99.99 % 99.95 %
4.1.7
...
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: B49 − 17 B49 − 20
Standard Specification for
1
Copper Rod for Electrical Purposes
This standard is issued under the fixed designation B49; 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 3
1.1 This specification covers the requirements for rod in diameters from ⁄4 to in. to 1 ⁄8 in. (6.4 mm to 35 mm) produced from
high conductivity coppers listed in Table 1, namely, electrolytic tough-pitch, oxygen-free, or fire-refined high conductivity coppers,
and are suitable for further fabrication into electrical conductors.
1.2 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 hazards caveat pertains only to Section 13. 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 safety,
health, and healthenvironmental 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
2.1 The following documents in the current issue of the Book of Standards form a part of this specification to the extent
referenced herein and define materials suitable for use in rod manufacture:
2
2.2 ASTM Standards:
B5 Specification for High Conductivity Tough-Pitch Copper Refinery Shapes
B115 Specification for Electrolytic Copper Cathode
B170 Specification for Oxygen-Free Electrolytic 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
E8/E8M Test Methods for Tension Testing of Metallic Materials
E18 Test Methods for Rockwell Hardness 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
E478 Test Methods for Chemical Analysis of Copper Alloys
E1004 Test Method for Determining Electrical Conductivity Using the Electromagnetic (Eddy Current) Method
E1606 Practice for Electromagnetic (Eddy Current) Examination of Copper and Aluminum Redraw Rod for Electrical Purposes
E2575 Test Method for Determination of Oxygen in Copper and Copper Alloys by Inert Gas Fusion
3
2.3 Other Document:
NBS Handbook 100 Copper Wire Tables
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 April 1, 2017April 15, 2020. Published May 2017May 2020. Originally approved in 1923. Last previous edition approved in 20162017 as
B49-16.-17. DOI: 10.1520/B0049-17.10.1520/B0049-20.
2
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from National Technical Information Service (NTIS), 5301 Shawnee Rd., Alexandria, VA 22312, http://www.ntis.gov.
*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 ----------------------
B49 − 20
3. Terminology
3.1 For definitions of general terms relating to copper and copper alloys refer to Terminology B846.
4. Ordering Information
4.1 Orders for rod under this specification shall include the following information:
4.1.1 ASTM designation and year of issue,
4.1.2 Quantity of each size,
4.1.3 UNS designation and requirements of copper (
...
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