ASTM B763-08a
(Specification)Standard Specification for Copper Alloy Sand Castings for Valve Applications
Standard Specification for Copper Alloy Sand Castings for Valve Applications
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 Units—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 DesignationCopperTinLeadZincNickel IronAlumi-
numMan-
ganeseSili-
conBismuthSelenium 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 “A”885 . . . 25. . .. . .. . .. . .. . . leaded nickel-tin bronzeC94800leaded nickel-tin bronze grade “B”8751 25. . .. . .. . .. . .. . . C94900leaded nickel-tin bronze grade “C”805555 . . . . . . . . . . . . . . . Aluminum bronzeC95200Grade A88. . .. . .. . .. . .39 . . . . . . . . . C95300Grade B 89. . .. . .. . .. . .110 . . . . . . . . . C95400Grade C 8...
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Designation: B763 – 08a
Standard Specification for
1
Copper Alloy Sand Castings for Valve Applications
This standard is issued under the fixed designation B763; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* B208 Practice for Preparing Tension Test Specimens for
Copper Alloy Sand, Permanent Mold, Centrifugal, and
1.1 This specification establishes requirements for copper
Continuous Castings
alloy sand castings for valve applications. Nominal composi-
B369 Specification for Copper-Nickel Alloy Castings
tions of the alloys defined by this specification are shown in
2
B824 Specification for General Requirements for Copper
Table 1.
Alloy Castings
NOTE 1—This specification does not cover Copper Alloy UNS Nos.
E10 Test Method for Brinell Hardness of Metallic Materials
C83600, C92200, C96200, and C96400. These alloys are also used in
E527 Practice for Numbering Metals and Alloys in the
valve applications. They are covered by the following specifications:
Unified Numbering System (UNS)
C83600: B62
3. General Requirements
C92200: B61
C96200: B369
3.1 The following sections of Specification B824 form a
C96400: B369
part of this specification.
3.1.1 Terminology,
3.1.2 Other Requirements,
1.2 The castings produced under this specification are used
3.1.3 Dimensions, Mass, and Permissible Variations,
in products which may be manufactured in advance and
3.1.4 Workmanship, Finish, and Appearance,
supplied for sale from stock by the manufacturer.
3.1.5 Sampling,
1.3 Units—The values stated in either SI units or inch-
3.1.6 Number of Tests and Retests,
pound units are to be regarded separately as standard. The
3.1.7 Specimen Preparation,
values stated in each system may not be exact equivalents;
3.1.8 Test Methods,
therefore,eachsystemshallbeusedindependentlyoftheother.
3.1.9 Significance of Numerical Limits,
Combining values from the two systems may result in non-
3.1.10 Inspection,
conformance with the standard.
3.1.11 Rejection and Rehearing,
2. Referenced Documents
3.1.12 Certification,
3
3.1.13 Test Report,
2.1 ASTM Standards:
3.1.14 Product Marking,
B61 Specification for Steam or Valve Bronze Castings
3.1.15 Packaging and Package Marking, and
B62 Specification for Composition Bronze or Ounce Metal
3.1.16 Supplementary Requirements.
Castings
4. Ordering Information
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
4.1 Include the following information when placing orders
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
for product under this specification, as applicable:
Castings and Ingots for Remelting.
4.1.1 Specification title, number, and year of approval,
Current edition approved Oct. 1, 2008. Published November 2008. Originally
approved in 1986. Last previous edition approved in 2008 as B763 – 08. DOI: 4.1.2 Quantity of castings,
10.1520/B0763-08A.
4.1.3 Copper Alloy UNS Number and temper (as-cast,
2
The UNS system for copper and copper alloys (see Practice E527) is a simple
heat-treated, etc.),
expansion of the former standard designation system accomplished by the addition
4.1.4 Pattern or drawing number and condition (as-cast,
of a prefix “C” and a suffix “00”. The suffix can be used to accommodate
composition variations of the base alloy.
machined, etc.),
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1.5 When castings are purchased for agencies of the U.S.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Government, the Supplementary Requirements of Specifica-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tion B824 may be specified.
*ASummary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
B763 – 08a
TABLE 1 Nominal Compositions
Alumi- Man- Sili-
Classification Copper Alloy UNS No. Commercial Designation Copper Tin Lead Zinc Nickel Iron Bismuth Selenium
num ganese con
1 1
Leaded red brass C83450 88 2 ⁄226 ⁄2 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 . . . . . . . . . . . . . . . . . .
1 1 1 1
C84800 76-2 ⁄2-6 ⁄2-15, or semi-red brass 76 2 ⁄2 6 ⁄2 15 . . . . . .
Leaded yellow brass C85200 high-copper yellow brass 72 1 3 24 . . . . . . . . . . . . . . . . . .
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:B763–08 Designation: B 763 – 08a
Standard Specification for
1
Copper Alloy Sand Castings for Valve Applications
This standard is issued under the fixed designation B 763; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
1.1 This specification establishes requirements for copper alloy sand castings for valve applications. Nominal compositions of
2
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 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are
mathematical conversions to SI units that are provided for information only and are not considered standard. —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.
2. Referenced Documents
3
2.1 ASTM Standards:
B 61 Specification for Steam or Valve Bronze Castings
B 62 Specification for Composition Bronze or Ounce Metal Castings
B 208 Practice for Preparing Tension Test Specimens for Copper Alloy Sand, Permanent Mold, Centrifugal, and Continuous
Castings
B 369 Specification for Copper-Nickel Alloy Castings
B 824 Specification for General Requirements for Copper Alloy Castings
E 10 Test Method for Brinell Hardness of Metallic Materials
E 527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. General Requirements
3.1 The following sections of Specification B 824 form a part of this specification.
3.1.1 Terminology,
3.1.2 Other Requirements,
3.1.3 Dimensions, Mass, and Permissible Variations,
3.1.4 Workmanship, Finish, and Appearance,
3.1.5 Sampling,
1
This specification is under the jurisdiction ofASTM Committee B05 on Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.05 on Castings
and Ingots for Remelting.
Current edition approved AprilOct. 1, 2008. Published MayNovember 2008. Originally approved in 1986. Last previous edition approved in 20042008 as B 763 – 048.
2
The UNS system for copper and copper alloys (see Practice E 527) is a simple expansion of the former standard designation system accomplished by the addition of
a prefix “C” and a suffix “00”. The suffix can be used to accommodate composition variations of the base alloy.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*ASummary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
B 763 – 08a
TABLE 1 Nominal Compositions
Alumi- Man- Sili-
Classification Copper Alloy UNS No. Commercial Designation Copper Tin Lead Zinc Nickel Iron Bismuth Selenium
num ganese con
1 1
Leaded red brass C83450 88 2 ⁄226 ⁄2 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 . . . . . . . . . . . . . . . . . .
1 1 1 1
C84800 76-2 ⁄2-6 ⁄2-15, or semi-red brass 76 2 ⁄2 6 ⁄2 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 manganes
...
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