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1.1 This specification establishes requirements for copper-beryllium alloy sand castings for general applications and nominal compositions alloys defined by this specification are shown in Table 1.

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 only to the test methods 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 requirements prior to use.

TABLE 1 Nominal Compositions

Copper Alloy
UNS No.
Previous
Designation
Copper Nickel Silicon Beryllium Cobalt Chromium Iron Zirconium Tin Manganese
C81400 70C 99.1 0.06 0.8
C82000 10C 97 0.5 2.5
C82200 3C, 14C 98 2.0 0.5
C82400A 165C, 165CTA 97.8 1.7 0.5
C82500A 20C, 20CTA 97.2 0.3 2.0 0.5
C82510 21C 96.6 0.3 2.0 1.1
C82600A 245C, 245CTA 96.8 0.3 2.4 0.5
C82800A 275C, 275CTA 96.6 0.3 2.6 0.5
C96700 72C 67.2 31.0 1.2 0.6 0.3 0.3 0.6

A When fine-grained castings are specified, 0.02 to 0.12 titanium is added for grain refinement, usually in the remelt ingot. See Specification B30.

Product Details

Published:
10/01/2009
Number of Pages:
5
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1 file , 82 KB
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