ASTM B763-12
(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: B62 C92200: B61 C96200: B369 C96400: B369
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 8821/2 261/2 1. . .. . .. . .. . .. . .. . . C8380083-4-6-7 or commercial red brass83 467 . . . . . . . . . . . . . . . . . .. . . Leaded semi-red brassC8440081-3-7-9 or valve composition813 79. . .. . .. . .. . .. . .. . .. . . C8480076-21/2-6½-15, or semi-red brass76 21/261/215. . .. . .. . .. . .. . .. . .. . . 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 . . . 11/21/2. . .. . .. . . C86500No. 1 manganese bronze58. . .. . .39. . .1 11. . .. . .. . . C86700leaded manganese bronze581134 . . . 222. . .. . .. . . Silicon bronze and siliconC87300silicon bronze95 . . . . . . . . . . . . . . . . . . 14. . .. . . brassC87400silicon brass82. . .1/2 14. . .. . .. . .. . .31/2 . . .. . . C87500silicon brass 82. . .. . .14. . .. . .. . .. . .4 . . .. . . C87600silicon bronze 89. . .. . .6. . .. . .. . .. . .5 . . .. . . C87610silicon bronze 92. . .. . .4. . .. . .. . .. . .4 . . .. . . C89530Bismuth-Selenium86.54.7. . .8.0. . .. . .. . .. . .. . .1.5.20 C89535Bismuth86.53.0. . .7.0.65. . .. . .. . .. . .1.4. . . Bismuth brassC89720A67.51. . .29.8. . .. . .0.5. . .0.50.7. . . Bismuth semi-red brassC89844bismuth brass841/24. . .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 n...
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Designation:B763 −12
StandardSpecification 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* B62 Specification for Composition Bronze or Ounce Metal
Castings
1.1 This specification establishes requirements for copper
B208 Practice for Preparing Tension Test Specimens for
alloy sand castings for valve applications. Nominal composi-
Copper Alloy Sand, Permanent Mold, Centrifugal, and
tions of the alloys defined by this specification are shown in
2 Continuous Castings
Table 1.
B369 Specification for Copper-Nickel Alloy Castings
NOTE 1—This specification does not cover Copper Alloy UNS Nos.
B824 Specification for General Requirements for Copper
C83600, C92200, C96200, and C96400. These alloys are also used in
Alloy Castings
valve applications. They are covered by the following specifications:
E10 Test Method for Brinell Hardness of Metallic Materials
E527 Practice for Numbering Metals and Alloys in the
Unified Numbering System (UNS)
C83600: B62
C92200: B61
C96200: B369
3. General Requirements
C96400: B369
3.1 The following sections of Specification B824 form a
part of this specification.
3.1.1 Terminology,
1.2 The castings produced under this specification are used
3.1.2 Other Requirements,
in products which may be manufactured in advance and
3.1.3 Dimensions, Mass, and Permissible Variations,
supplied for sale from stock by the manufacturer.
3.1.4 Workmanship, Finish, and Appearance,
1.3 Units—The values stated in either SI units or inch-
3.1.5 Sampling,
pound units are to be regarded separately as standard. The
3.1.6 Number of Tests and Retests,
values stated in each system may not be exact equivalents;
3.1.7 Specimen Preparation,
therefore,eachsystemshallbeusedindependentlyoftheother.
3.1.8 Test Methods,
Combining values from the two systems may result in non-
3.1.9 Significance of Numerical Limits,
conformance with the standard.
3.1.10 Inspection,
3.1.11 Rejection and Rehearing,
2. Referenced Documents
3.1.12 Certification,
3
2.1 ASTM Standards:
3.1.13 Test Report,
B61 Specification for Steam or Valve Bronze Castings
3.1.14 Product Marking,
3.1.15 Packaging and Package Marking, and
3.1.16 Supplementary Requirements.
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
Castings and Ingots for Remelting. 4. Ordering Information
Current edition approved April 1, 2012. Published May 2012. Originally
4.1 Include the following information when placing orders
approved in 1986. Last previous edition approved in 2008 as B763 – 08a. DOI:
10.1520/B0763-12.
for product under this specification, as applicable:
2
The UNS system for copper and copper alloys (see Practice E527) is a simple
4.1.1 Specification title, number, and year of approval,
expansion of the former standard designation system accomplished by the addition
4.1.2 Quantity of castings,
of a prefix “C” and a suffix “00”. The suffix can be used to accommodate
composition variations of the base alloy.
4.1.3 Copper Alloy UNS Number and temper (as-cast,
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
heat-treated, etc.),
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.1.4 Pattern or drawing number and condition (as-cast,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. machined, etc.),
*A Summary 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 ----------------------
B763−12
TABLE 1 Nominal Compositions
Copper Alloy Alumi- Man- Sili-
Classification Commercial Designation CopperTin Lead Zinc Nickel Iron Bismuth Selenium
UNS No. 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 . .
...
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:B763–08a Designation: B763 – 12
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*
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: B62
C92200: B61
C96200: B369
C96400: B369
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.
2. Referenced Documents
3
2.1 ASTM Standards:
B61 Specification for Steam or Valve Bronze Castings
B62 Specification for Composition Bronze or Ounce Metal Castings
B208 Practice for Preparing Tension Test Specimens for Copper Alloy Sand, Permanent Mold, Centrifugal, and Continuous
Castings
B369 Specification for Copper-Nickel Alloy Castings
B824 Specification for General Requirements for Copper Alloy Castings
E10 Test Method for Brinell Hardness of Metallic Materials
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. General Requirements
3.1 The following sections of Specification B824 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,
3.1.6 Number of Tests and Retests,
3.1.7 Specimen Preparation,
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 Oct.April 1, 2008.2012. Published November 2008.May 2012. Originally approved in 1986. Last previous edition approved in 2008 as
B763 – 08a. DOI: 10.1520/B0763-08A.10.1520/B0763-12.
2
The UNS system for copper and copper alloys (see Practice E527) 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 ----------------------
B763 – 12
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 ⁄2 2 6 ⁄2 1 . . . . .
1 1
Leaded red brass C83450 88 2 ⁄2 2 6 ⁄2 1 . . . . . .
C83800 83-4-6-7 or commercial red brass 83 4 6 7 . . . . . .
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 . . . . . .
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 . . . . . .
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 . . . . . .
Leaded yellow brass C85200 high-copper yellow brass 72 1 3 24 . . . . . . .
C85400 commercial No.
...
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