Standard Specification for
Copper-Beryllium Alloy Forgings and Extrusions (UNS Nos.
C17500 and C17510)1
This standard is issued under the fixed designation B 938; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification establishes the requirements for
copper-cobalt-beryllium alloy (UNS No. C17500) and copper-nickel-beryllium alloy (UNS No. C17510) forgings and extrusions.
1.2 The intent is to provide a system of interchangeable
alloys.
1.3 Units—Values stated in inch-pound units are to be
regarded as standard.
The values given in parentheses are
mathematical conversions to SI units, which are provided for
information only and are not considered standard.
1.4 The following safety hazard caveat pertains only to the
test method(s) described in 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.
Referenced Documents
2.1 ASTM Standards: 2
B 194 Specification for Copper-Beryllium Alloy Plate,
Sheet, Strip, and Rolled Bar
B 249/B 249M Specification for General Requirements for
Wrought Copper and Copper-Alloy Rod, Bar, Shapes, and
Forgings
B 601 Classification for Temper Designations for Copper
and Copper Alloys-Wrought and Cast
B 846 Terminology for Copper and Copper Alloys
E 8 Test Methods for Tension Testing of Metallic Materials
E 18 Test Methods for Rockwell Hardness and Rockwell
Superficial Hardness of Metallic Materials
E 1004 Practice for Determining Electrical Conductivity
Using the Electromagnetic (Eddy-Current) Method
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