• ASTM B427-09

ASTM B427-09

Standard Specification for Gear Bronze Alloy Castings

ASTM International, 10/01/2009

Publisher: ASTM

File Format: PDF

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Published:01/10/2009

Pages:3

File Size:1 file , 74 KB

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1.1 This specification establishes requirements for alloys whose copper alloy numbers and nominal compositions are shown in Table 1. The castings may be furnished as one of three types: static chill, centrifugal chill, or sand cast.

1.2 The values stated in inch-pound units are to be regarded as the standard. SI values given in parentheses are for information purposes only.

TABLE 1 Nominal Composition

Copper
Alloy
UNS No.
Previously
Used
Designation
Composition, %
Copper Tin Nickel Lead Phos-
phorus
C90800 A 87.8 12.0 ... 0 0.2
C91700 B 86.3 12.0 1.5 0 0.2
C90700 ... 87.8 11.0 ... 0 0.2
C91600 C 88.0 10.3 1.5 0 0.2
C92900 D 83.5 10.0 3.5 2.8 0.2

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