ASTM B763/B763M-15

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 1.2  (A) Phosphorus 0.13(B) Phosphorus 0.1(C) Antimony 0.07, Boron 0.001.  
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.

General Information

• Status: Historical
• Publication Date: 30-Apr-2015
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.05 - Castings and Ingots for Remelting

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B763/B763M −15
Standard Specification for
1
Copper Alloy Sand Castings for Valve Applications
This standard is issued under the fixed designation B763/B763M; 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 U.S. Department of Defense.
1. Scope* B369 Specification for Copper-Nickel Alloy Castings
B824 Specification for General Requirements for Copper
1.1 This specification establishes requirements for copper
Alloy Castings
alloy sand castings for valve applications. Nominal composi-
E10 Test Method for Brinell Hardness of Metallic Materials
tions of the alloys defined by this specification are shown in
2 E527 Practice for Numbering Metals and Alloys in the
Table 1.
Unified Numbering System (UNS)
NOTE 1—This specification does not cover Copper Alloy UNS Nos.
C83600, C92200, C96200, and C96400. These alloys are also used in
3. General Requirements
valve applications. They are covered by the following specifications:
3.1 The following sections of Specification B824 form a
C83600: B62
C92200: B61
part of this specification.
C96200: B369
3.1.1 Terminology,
C96400: B369
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,
3.1.12 Certification,
2. Referenced Documents
3.1.13 Test Report,
3
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
B208 Practice for Preparing Tension Test Specimens for
4. Ordering Information
Copper Alloy Sand, Permanent Mold, Centrifugal, and
Continuous Castings 4.1 Include the following information when placing orders
for product under this specification, as applicable:
4.1.1 Specification title, number, and year of approval,
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
4.1.2 Quantity of castings,
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
Castings and Ingots for Remelting.
4.1.3 Copper Alloy UNS Number and temper (as-cast,
Current edition approved May 1, 2015. Published May 2015. Originally
heat-treated, etc.),
approved in 1986. Last previous edition approved in 2014 as B763/B763M – 14.
4.1.4 Pattern or drawing number and condition (as-cast,
DOI: 10.1520/B0763_B0763M-15.
2
The UNS system for copper and copper alloys (see Practice E527) is a simple
machined, etc.),
expansion of the former standard designation system accomplished by the addition
4.1.5 When castings are purchased for agencies of the U.S.
of a prefix “C” and a suffix “00”. The suffix can be used to accommodate
Government, the Supplementary Requirements of Specifica-
composition variations of the base alloy.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or tion B824 may be specified.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4.2 The following requirements are optional and should be
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. specified in the purchase order when required.
*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/B763M−15
TABLE 1 Nominal Compositions
Copper Alloy Alumi- Man- Sili- Sele-
Classification Commercial Designation Copper Tin Lead Zinc Nickel Iron Bismuth
UNS No. num ganese con nium
1 1
Leaded red brass C83450 88 2 ⁄2 26 ⁄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
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM 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/B763M − 14 B763/B763M − 15
Standard Specification for
1
Copper Alloy Sand Castings for Valve Applications
This standard is issued under the fixed designation B763/B763M; 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 U.S. 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,
1
This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on Castings
and Ingots for Remelting.
Current edition approved April 1, 2014May 1, 2015. Published May 2014May 2015. Originally approved in 1986. Last previous edition approved in 20132014 as
ϵ1
B763/B763M – 13B763/B763M – 14. . DOI: 10.1520/B0763_B0763M-14.10.1520/B0763_B0763M-15.
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 referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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/B763M − 15
TABLE 1 Nominal Compositions
Copper Alloy Alumi- Man- Sili- Sele-
Classification Commercial Designation Copper Tin Lead Zinc Nickel Iron Bismuth
UNS No. num ganese con nium
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 . . . . . . . . . . . . . . . . . . . . .
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 . . . . . . . . . . . . . . . . . . . . .
A
Yellow brass C85470 yellow brass 62.5 2.5 . . . 34.5 . . . . . . 0.5 . . . . . . . . . . . .
Leaded yellow brass C85700 leaded naval brass 61 1 1 37 . . . . . . . . . . . . . . . . . . . . .
High-strength yellow C86200 high-strength manganese bronze 63 . . . . . . 27 . . . 3 4 3 . .
...