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ASTM B870-08

Historical Revision

Standard Specification for Copper-Beryllium Alloy Forgings and Extrusions Alloys (UNS Nos. C17500 and C17510)

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1.1 This specification establishes the requirements for copper-beryllium alloy forgings and extrusions. The following alloys are specified:

Copper Alloy
UNS No.
Nominal Composition, %
BerylliumCobaltNickel
C175000.502.6
C175100.401.8

1.2 UnitsThe 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 to Sections 10 and 11 of this specification: 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.

This specification establishes the requirements for copper-beryllium alloy forgings and extrusions. The following alloys are specified: UNS No. C17500 and C17510. The material of manufacture should be a cast billet conforming to the chemical composition requirements for the alloy specified. The product shall be manufactured by hot working or extrusion, solution heat-treating, precipitation hardening, and straightening. The material shall conform to the chemical composition for the alloy specified. The material shall conform to the electrical conductivity requirements specified. Hardness test and tensile test shall be made to conform to the requirements specified.


SDO ASTM: ASTM International
Document Number B870
Publication Date April 1, 2008
Language en - English
Page Count 3
Revision Level 08
Supercedes
Committee B05.02
Publish Date Document Id Type View
Oct. 1, 2021 B0870-21 Revision
April 1, 2008 B0870-08 Revision
Oct. 10, 2002 B0870-02 Revision
Jan. 1, 1996 B0870-96 Revision
April 1, 2014 B0870-08R14 Reaffirmation