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  • ASTM
    B763-08a Standard Specification for Copper Alloy Sand Castings for Valve Applications
    Edition: 2008
    $93.60
    Unlimited Users per year

Description of ASTM-B763 2008

ASTM B763-08a

Historical Standard: Standard Specification for Copper Alloy Sand Castings for Valve Applications




ASTM B763

Scope

1.1 This specification establishes requirements for copper alloy sand castings for valve applications. Nominal compositions of the alloys defined by this specification are shown in Table 1.

Note 1—This specification does not cover Copper Alloy UNS Nos. C83600, C92200, C96200, and C96400. These alloys are also used in valve applications. They are covered by the following specifications:

C83600: B 62
C92200: B 61
C96200: B 369
C96400: B 369

1.2 The castings produced under this specification are used in products which may be manufactured in advance and supplied for sale from stock by the manufacturer.

1.3 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

TABLE 1 Nominal Compositions

Classification Copper Alloy UNS No. Commercial Designation Copper Tin Lead Zinc Nickel Iron Alumi-
num
Man-
ganese
Sili-
con
Bismuth Selenium
Leaded red brass C83450 88 2½ 2 6½ 1 . . . . . . . . . . . . . . .
C83800 83-4-6-7 or commercial red brass 83 4 6 7 . . . . . . . . . . . . . . . . . .
Leaded semi-red brass C84400 81-3-7-9 or valve composition 81 3 7 9 . . . . . . . . . . . . . . . . . .
C84800 76-2½-6½-15, or semi-red brass 76 2½ 6½ 15 . . . . . . . . . . . . . . . . . .
Leaded yellow brass C85200 high-copper yellow brass 72 1 3 24 . . . . . . . . . . . . . . . . . .
C85400 commercial No. 1 yellow brass 67 1 3 29 . . . . . . . . . . . . . . . . . .
C85700 leaded naval brass 61 1 1 37 . . . . . . . . . . . . . . . . . .
High-strength yellow brass C86200 high-strength manganese bronze 63 . . . . . . 27 . . . 3 4 3 . . . . . .
C86300 high-strength manganese bronze 61 . . . . . . 27 . . . 3 6 3 . . . . . .
C86400 leaded manganese bronze 58 1 1 38 . . . 1 ½ ½ . . . . . .
C86500 No. 1 manganese bronze 58 . . . . . . 39 . . . 1 1 1 . . . . . .
C86700 leaded manganese bronze 58 1 1 34 . . . 2 2 2 . . . . . .
Silicon bronze and silicon C87300 silicon bronze 95 . . . . . . . . . . . . . . . . . . 1 4 . . .
brass C87400 silicon brass 82 . . . ½ 14 . . . . . . . . . . . . 3½ . . .
C87500 silicon brass 82 . . . . . . 14 . . . . . . . . . . . . 4 . . .
C87600 silicon bronze 89 . . . . . . 6 . . . . . . . . . . . . 5 . . .
C87610 silicon bronze 92 . . . . . . 4 . . . . . . . . . . . . 4 . . .
C89530 Bismuth-Selenium 86.5 4.7 8.0 1.5 .20
C89535 Bismuth 86.5 3.0 7.0 .65 1.4
Bismuth semi-red brass C89844 bismuth brass 84½ 4 . . . 8 . . . . . . . . . . . . . . . 3
Tin bronze and leaded tin C90300 88-8-0-4, or modified G bronze 88 8 . . . 4 . . . . . . . . . . . . . . . . . .
bronze
C90500 88-10-0-2, on G bronze 88 10 . . . 2 . . . . . . . . . . . . . . . . . .
C92300 87-8-1-4, or Navy PC 87 8 1 4 . . . . . . . . . . . . . . . . . .
C92600 87-10-1-2 87 10 1 2 . . . . . . . . . . . . . . . . . .
High-lead tin bronze C93200 83-7-7-3 83 7 7 3 . . . . . . . . . . . . . . . . . .
C93500 85-5-9-1 85 5 9 1 . . . . . . . . . . . . . . . . . .
C93700 80-10-10 80 10 10 . . . . . . . . . . . . . . . . . . . . .
C93800 78-7-15 78 7 15 . . . . . . . . . . . . . . . . . . . . .
C94300 71-5-24 71 5 24 . . . . . . . . . . . . . . . . . . . . .
Nickel-tin bronze and C94700 nickel-tin bronze grade A 88 5 . . . 2 5 . . . . . . . . . . . . . . .
leaded nickel-tin bronze C94800 leaded nickel-tin bronze grade B 87 5 1 2 5 . . . . . . . . . . . . . . .
C94900 leaded nickel-tin bronze grade C 80 5 5 5 5 . . . . . . . . . . . . . . .
Aluminum bronze C95200 Grade A 88 . . . . . . . . . . . . 3 9 . . . . . . . . .
C95300 Grade B 89 . . . . . . . . . . . . 1 10 . . . . . . . . .
C95400 Grade C 85 . . . . . . . . . . . . 4 11 . . . . . . . . .
C95410 84 . . . . . . . . . 2 4 10 . . . . . . . . .
Silicon aluminum bronze C95600 Grade E 91 . . . . . . . . . . . . . . . 7 . . . 2 . . .
Nickel aluminum bronze C95500 Grade D 81 . . . . . . . . . 4 4 11 . . . . . . . . .
C95800 81.3 . . . . . . . . . 4.5 4 9 1.2 . . . . . .
Leaded nickel bronze C97300 12 % leaded nickel silver 57 2 9 20 12 . . . . . . . . . . . . . . .
C97600 20 % leaded nickel silver 64 4 4 8 20 . . . . . . . . . . . . . . .
C97800 25 % leaded nickel silver 66 5 2 2 25 . . . . . . . . . . . . . . .
Special alloys C99400 87 . . . . . . 4.4 3.0 3.0 1.6 . . . 1.0 . . .
C99500 87 . . . . . . 1.5 4.5 4.0 1.7 . . . 1.3 . . .

Keywords

copper alloy castings; copper-base alloy castings; valve castings; UNS C86500 (cast manganese bronze); UNS C90300 (cast tin bronze); UNS C86700 (cast leaded manganese bronze); UNS C87400 (cast silicon brass); UNS C87500 (cast silicon brass); UNS C90500 (cast tin bronze); UNS C87600 (cast silicon brass); UNS C87610 (cast silicon brass); UNS C92300 (cast leaded tin bronze); UNS C92600 (cast leaded tin bronze); UNS C93200 (cast high-leaded tin bronze); UNS C93500 (cast high-leaded tin bronze); UNS C93700 (cast high-leaded tin bronze); UNS C93800 (cast high-leaded tin bronze); UNS C94300 (cast high-leaded tin bronze); UNS C94700 (cast nickel-tin bronze); Tensile properties/testing--metallic materials; UNS C83450 (leaded red brass); UNS C86400 (cast leaded manganese bronze); UNS C83800 (cast leaded red brass); UNS C84400 (cast semi-red brass); UNS C84800 (cast semi-red brass); UNS C85200 (cast leaded yellow brass); UNS C85400 (cast leaded yellow brass); UNS C85700 (cast leaded yellow brass); UNS C86200 (cast manganese bronze); UNS C86300 (cast manganese bronze); Valve castings; Welded Cu/Cu alloy castings; UNS C94800 (cast nickel-tin bronze); UNS C94900 (cast nickel-tin bronze); UNS C95800 (cast aluminum bronze); UNS C97300 (cast nickel-silver); UNS C95200 (cast aluminum bronze); UNS C95300 (cast aluminum bronze); UNS C97600 (cast nickel silver); UNS C95400 (cast aluminum bronze); UNS C97800 (cast nickel-silver); UNS C95410 (cast aluminum bronze); UNS C99400 (cast copper alloy); UNS C95500 (cast aluminum bronze); UNS C95600 (cast aluminum bronze); UNS C99500 (cast copper alloy); Aluminum bronze castings; Copper alloy castings--specifications; Fittings; Pressure testing; Sand castings (copper alloy)--specifications; Seawater (natural/synthetic); Seawater service; Silicon brass (casting)


ICS Code

ICS Number Code 77.150.30 (Copper products)


DOI: 10.1520/B0763-08A

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