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ASTM B271-08
Standard Specification for Copper-Base Alloy Centrifugal Castings
6 стр.
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Разработчик:
Зарубежные/ASTM
ICS:
77.150.30 Copper products / Продукция из меди
Сборник (ASTM):
02.01 Copper and Copper Alloys / Медь и сплавы из меди
Тематика:
Copper
Описание
Реферат

This specification establishes the requirements for copper-based brass or bronze centrifugal castings. Mechanical properties are determined from test bar castings and should meet the requirements listed herein. Brinell hardness readings should be taken on the grip end of tension test bars. All castings should not be repaired by welding without customer approval. UNS C95520 copper alloy castings are used in the heat treated condition only.

Область применения

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

ClassificationCopper Alloy
UNS No.		Commercial
Designation		CopperTinLeadZincNickelIronAlum-
inum		Mang-
anese		Silicon
Leaded red brassC8360085-5-5-585 5 5 5...............
C8380083-4-6-7 or commercial red brass83 4 6 7...............
Leaded semi-red brassC8440081-3-7-9 or valve composition81 3 7 9...............
C8480076-2½-6½-15 or semi-red brass76 2½ 6½15...............
Leaded yellow brassC85200high copper yellow brass72 1 324...............
C85400commercial No. 1 yellow brass67 1 329...............
C85700leaded naval brass61 1 137...............
High-strength yellow brassC86200high-strength manganese bronze63......27...3 43...
C86300high-strength manganese bronze61......27...3 63...
C86400leaded manganese bronze58 1 138...1½½...
C86500No. 1 manganese bronze58......39...1 11...
C86700leaded manganese bronze58 1 134...2 22...
Silicon bronze and siliconC87300silicon bronze95..................14
brassC87400silicon brass82...½14............ 3½
C87500silicon brass82......14............4
C87600silicon bronze89...... 6............5
Tin bronze and leadedC9030088-8-0-4, or modified “G” bronze88 8... 4...............
tin bronzeC9050088-10-0-2, or “G” bronze8810... 2...............
C9220088-6-2-4 or “M” bronze88 6 2 4...............
C9230087-8-1-4, or Navy PC87 8 1 4...............
High-lead tin bronzeC9320083-7-7-383 7 7 3...............
C9350085-5-9-185 5 9 1...............
C9360081-7-1281 712..................
C9370080-10-10801010..................
C9380078-7-1578 715..................
C9430071-5-2471 524..................
Aluminum bronzeC95200Grade A88............3 9......
C95300Grade B89............110......
C95400Grade C85............411......
C9541084......... 2410......
C9590082.5............4.513......
Nickel aluminum bronzeC95500Grade D81......... 4411......
C9552078.5......... 5.55.011......
C9580081.3......... 4.54 91.2...
Leaded nickel bronzeC9730012 % leaded nickel silver57 2 92012............
C9760020 % leaded nickel silver64 4 4 820............
C9780025 % leaded nickel silver66 5 2 225............
Ключевые слова:
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)
C953001585–;1635°F1150–;1225°F
(860–;890°C)(620–;660°C)
C95400
C954101600–;1675°F1150–;1225°F
C95500(870–;910°C)(620–;660°C)
C95520(2 h followed by925–;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)