ASTM B49-20 - 15.4.2020
 
1. 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.

 
2. Referenced Documents

B115-10(2021)

Standard Specification for Electrolytic Copper Cathode

B170-99(2020)

Standard Specification for Oxygen-Free Electrolytic Copper´Refinery Shapes

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).

E8/E8M-24

Standard Test Methods for Tension Testing of Metallic Materials

B5-22

Standard Specification for High Conductivity Tough-Pitch Copper Refinery Shapes

E18-22

Standard Test Methods for Rockwell Hardness 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

E478-08(2017)

Standard Test Methods for Chemical Analysis of Copper Alloys

E1606-20

Standard Practice for Electromagnetic (Eddy Current) Examination of Copper and Aluminum Redraw Rod for Electrical Purposes

E2575-19

Standard Test Method for Determination of Oxygen in Copper and Copper Alloys by Inert Gas Fusion

NBS Handbook 100

Copper Wire Tables