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  • ASTM
    B271-08 Standard Specification for Copper-Base Alloy Centrifugal Castings
    Edition: 2008
    $93.60
    Unlimited Users per year

Description of ASTM-B271 2008

ASTM B271-08

Historical Standard: Standard Specification for Copper-Base Alloy Centrifugal Castings




ASTM B271

Scope

1.1 This specification establishes requirements for centrifugal castings of copper-base alloys having the nominal compositions shown in Table 1.

1.2 The 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 Alum-
inum 		Mang-
anese 		Silicon
Leaded red brass C83600 85-5-5-5 85 5 5 5 ... ... ... ... ...
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
Tin bronze and leaded C90300 88-8-0-4, or modified “G” bronze 88 8 ... 4 ... ... ... ... ...
tin bronze C90500 88-10-0-2, or “G” bronze 88 10 ... 2 ... ... ... ... ...
C92200 88-6-2-4 or “M” bronze 88 6 2 4 ... ... ... ... ...
C92300 87-8-1-4, or Navy PC 87 8 1 4 ... ... ... ... ...
High-lead tin bronze C93200 83-7-7-3 83 7 7 3 ... ... ... ... ...
C93500 85-5-9-1 85 5 9 1 ... ... ... ... ...
C93600 81-7-12 81 7 12 ... ... ... ... ... ...
C93700 80-10-10 80 10 10 ... ... ... ... ... ...
C93800 78-7-15 78 7 15 ... ... ... ... ... ...
C94300 71-5-24 71 5 24 ... ... ... ... ... ...
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 ... ...
C95900 82.5 ... ... ... ... 4.5 13 ... ...
Nickel aluminum bronze C95500 Grade D 81 ... ... ... 4 4 11 ... ...
C95520 78.5 ... ... ... 5.5 5.0 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 ... ... ... ...

Keywords

centrifugal castings; copper alloy castings; copper-base alloy castings

TABLE 5 Suggested Heat Treatments

Copper Alloy
UNS No. 		Solution Treatment
(not less than 1 h
followed by water quench) 		Annealing Treatment
(not less than 2 h
followed by air cool)
C95300 1585–1635°F 1150–1225°F
(860–890°C) (620–660°C)
C95400
C95410 1600–1675°F 1150–1225°F
C95500 (870–910°C) (620–660°C)
C95520 (2 h followed by 925–1000°F
water quench) (495–540°C)
1600–1700°F
(870–925°C)
; 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); UNS C86400 (cast leaded manganese bronze); Aluminum bronze castings; Brass castings; Bronze castings--specifications; Centrifugal castings--specifications; Copper alloy castings--specifications; Silicon brass (casting); UNS C83600 (cast leaded red brass); UNS C97600 (cast nickel silver); UNS C97800 (cast nickel-silver); UNS C92300 (cast leaded tin bronze); UNS C93200 (cast high-leaded tin bronze); UNS C93500 (cast high-leaded tin bronze); UNS C93600 (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 C95200 (cast aluminum bronze); UNS C95300 (cast aluminum bronze); UNS C95400 (cast aluminum bronze); UNS C95410 (cast aluminum bronze); UNS C95500 (cast aluminum bronze); UNS C95520 (cast aluminum bronze); UNS C95800 (cast aluminum bronze); UNS C95900 (cast aluminum bronze); UNS C97300 (cast nickel-silver); UNS C86500 (cast manganese bronze); UNS C86700 (cast leaded manganese bronze); UNS C87300 (copper silicon alloy); UNS C87400 (cast silicon brass); UNS C87500 (cast silicon brass); UNS C87600 (cast silicon brass); UNS C90300 (cast tin bronze); UNS C90500 (cast tin bronze); UNS C92200 (cast leaded tin bronze)

ICS Code

ICS Number Code 77.150.30 (Copper products)


DOI: 10.1520/B0271-08

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