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Normas ASTM – AENOR
ASTM B763-08a

ASTM B763-08a

Standard Specification for Copper Alloy Sand Castings for Valve Applications

Fecha:
2012-05-25 /Historical
Superseeded by:
Abstract:

This specification establishes requirements for copper alloy sand castings for valve applications. The castings shall conform to the chemical composition requirements specified. Mechanical properties shall be determined from separately cast test bars, and shall conform with the requirements. Brinell hardness readings shall be taken in the grip end of the tension test bar and shall be made in accordance with the specified requirements.

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

ClassificationCopper Alloy UNS No.Commercial DesignationCopperTinLeadZincNickel IronAlumi-
num
Man-
ganese
Sili-
con
BismuthSelenium
Leaded red brassC83450 882½ 26½ 1. . .. . .. . .. . .. . .
C8380083-4-6-7 or commercial red brass83 467 . . . . . . . . . . . . . . . . . .
Leaded semi-red brassC8440081-3-7-9 or valve composition813 79. . .. . .. . .. . .. . .. . .
C8480076-2½-6½-15, or semi-red brass76 2½6½15. . .. . .. . .. . .. . .. . .
Leaded yellow brassC85200high-copper yellow brass721324. . .. . .. . .. . .. . .. . .
C85400commercial No. 1 yellow brass671329 . . . . . . . . . . . . . . . . . .
C85700leaded naval brass 6111 37. . .. . .. . .. . .. . .. . .
High-strength yellow brassC86200high-strength manganese bronze63. . .. . .27 . . . 343. . .. . .
C86300high-strength manganese bronze61. . .. . .27. . .3 63. . .. . .
C86400leaded manganese bronze581138 . . . 1½½. . .. . .
C86500No. 1 manganese bronze58. . .. . .39. . .1 11. . .. . .
C86700leaded manganese bronze581134 . . . 222. . .. . .
Silicon bronze and siliconC87300silicon bronze95 . . . . . . . . . . . . . . . . . . 14. . .
brassC87400silicon brass82. . .½ 14. . .. . .. . .. . .3½ . . .
C87500silicon brass 82. . .. . .14. . .. . .. . .. . .4 . . .
C87600silicon bronze 89. . .. . .6. . .. . .. . .. . .5 . . .
C87610silicon bronze 92. . .. . .4. . .. . .. . .. . .4 . . .
C89530Bismuth-Selenium86.54.78.01.5.20
C89535Bismuth86.53.07.0.651.4
Bismuth semi-red brassC89844bismuth brass84½4. . .8 . . . . . . . . . . . . . . . 3
Tin bronze and leaded tinC9030088-8-0-4, or modified G bronze888. . .4. . .. . .. . .. . .. . .. . .
bronze
C9050088-10-0-2, on G bronze88 10. . .2. . .. . .. . .. . .. . .. . .
C9230087-8-1-4, or Navy PC87814 . . . . . . . . . . . . . . . . . .
C9260087-10-1-2 871012. . .. . .. . .. . .. . .. . .
High-lead tin bronzeC9320083-7-7-383 773 . . . . . . . . . . . . . . . . . .
C9350085-5-9-1 8559 1. . .. . .. . .. . .. . .. . .
C9370080-10-10 801010. . .. . .. . .. . .. . .. . .. . .
C9380078-7-15 78715 . . . . . . . . . . . . . . . . . . . . .
C9430071-5-24 71524 . . . . . . . . . . . . . . . . . . . . .
Nickel-tin bronze andC94700nickel-tin bronze grade A885 . . . 25. . .. . .. . .. . .. . .
leaded nickel-tin bronzeC94800leaded nickel-tin bronze grade B8751 25. . .. . .. . .. . .. . .
C94900leaded nickel-tin bronze grade C805555 . . . . . . . . . . . . . . .
Aluminum bronzeC95200Grade A88. . .. . .. . .. . .39 . . . . . . . . .
C95300Grade B 89. . .. . .. . .. . .110 . . . . . . . . .
C95400Grade C 85. . .. . .. . .. . .411 . . . . . . . . .
C9541084. . .. . .. . .24 10. . .. . .. . .
Silicon aluminum bronzeC95600Grade E91 . . . . . . . . . . . . . . . 7. . .2. . .
Nickel aluminum bronzeC95500Grade D81 . . . . . . . . . 4411. . .. . .. . .
C9580081.3. . .. . .. . .4.54 91.2. . .. . .
Leaded nickel bronzeC9730012 % leaded nickel silver572 92012 . . . . . . . . . . . . . . .
C9760020 % leaded nickel silver64 448 20. . .. . .. . .. . .. . .
C9780025 % leaded nickel silver66 522 25. . .. . .. . .. . .. . .
Special alloysC99400 87. . .. . .4.43.0 3.01.6. . .1.0. . .
C9950087. . .. . .1.54.5 4.01.7. . .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)
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