ASTM B49-16

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 − 15a B49 − 16
Standard Specification for
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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*
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1.1 This specification covers the requirements for rod in diameters from ⁄4 to 1 ⁄8 in. (6.4 to 35 mm) produced from high
conductivity coppers listed in Table 1, 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 and health
practices and determine the applicability of regulatory limitations prior to use.
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:
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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
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
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2.3 Other Document:
NBS Handbook 100 Copper Wire Tables
3. Terminology
3.1 For definitions of general terms relating to copper and copper alloys refer to Terminology B846.
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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 Sept. 15, 2015April 1, 2016. Published October 2015May 2016. Originally approved in 1923. Last previous edition approved in 2015 as
B49–15.–15a. DOI: 10.1520/B0049-15A.10.1520/B0049-16.
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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.
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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
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B49 − 16
A
TABLE 1 Chemical Composition
UNS Number C11000 C11040 C10100 C10200
B C
Copper Type ETP ETP OFE OF
D E E D
Copper, min 99.90 % 99.90 % 99.99 % 99.95 %
incl silver incl silver
ppm ppm ppm ppm
Tellurium, max . . . 2 2 . . .
Selenium, max . . . 2 3 . . .
Bismuth, max . . . 1.0 1.0 . . .
Group total, max . . . 3 . . . . . .
Antimony, max . . . 4 4 . . .
Arsenic, max . . . 5 5 . . .
Tin, max . . . 5 2 . . .
Lead, max . . . 5 5 . . .
Iron, max . . . 10 10 . . .
Nickel, max . . . 10 10 . . .
Sulfur, max . . . 15 15 . . .
Silver, max . . . 25 25 . . .
Oxygen . . . 100–650 5 max 10 max
F
Maximum . . . 65 . . . . . .
allowable total
Cadmium, max . . . . . . 1 . . .
Phosphorus, max . . . . . . 3 . . .
Zin
...