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ASTM B763/B763M-23

(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 covers requirements for copper alloy sand castings for valve applications. Nominal compositions of the alloys defined by this specification are shown in Table 1.2  
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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
30-Sep-2023
ICS
77.150.30 - Copper products
Technical Committee
B05 - Copper and Copper Alloys
Drafting Committee
B05.05 - Castings and Ingots for Remelting
Current Stage
Ref Project

Relations

Replaces
ASTM B763/B763M-15(2022) - Standard Specification for Copper Alloy Sand Castings for Valve Applications
Effective Date
01-Oct-2023
Referred By
ASTM B824-17 - Standard Specification for General Requirements for Copper Alloy Castings
Effective Date
01-Oct-2023
Referred By
ASTM B584-22 - Standard Specification for Copper Alloy Sand Castings for General Applications
Effective Date
01-Oct-2023
Referred By
ASTM B30-23 - Standard Specification for Copper Alloys in Ingot and Other Remelt Forms
Effective Date
01-Oct-2023

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Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: B763/B763M − 23
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* B62 Specification for Composition Bronze or Ounce Metal
Castings
1.1 This specification covers requirements for copper alloy
B208 Practice for Preparing Tension Test Specimens for
sand castings for valve applications. Nominal compositions of
2 Copper Alloy Sand, Permanent Mold, Centrifugal, and
the alloys defined by this specification are shown in Table 1.
Continuous Castings
NOTE 1—This specification does not cover Copper Alloy UNS Nos.
B369 Specification for Copper-Nickel Alloy Castings
C83600, C92200, C96200, and C96400. These alloys are also used in
B824 Specification for General Requirements for Copper
valve applications. They are covered by the following specifications:
Alloy Castings
C83600: B62
E10 Test Method for Brinell Hardness of Metallic Materials
C92200: B61
C96200: B369 E527 Practice for Numbering Metals and Alloys in the
C96400: B369
Unified Numbering System (UNS)
1.2 The castings produced under this specification are used
in products which may be manufactured in advance and
3. General Requirements
supplied for sale from stock by the manufacturer.
3.1 The following sections of Specification B824 form a
1.3 Units—The values stated in either SI units or inch-
part of this specification.
pound units are to be regarded separately as standard. The
3.1.1 Terminology,
values stated in each system are not necessarily exact equiva-
3.1.2 Other Requirements,
lents; therefore, to ensure conformance with the standard, each
3.1.3 Dimensions, Mass, and Permissible Variations,
system shall be used independently of the other, and values
3.1.4 Workmanship, Finish, and Appearance,
from the two systems shall not be combined.
3.1.5 Sampling,
1.4 This international standard was developed in accor-
3.1.6 Number of Tests and Retests,
dance with internationally recognized principles on standard-
3.1.7 Specimen Preparation,
ization established in the Decision on Principles for the
3.1.8 Test Methods,
Development of International Standards, Guides and Recom-
3.1.9 Significance of Numerical Limits,
mendations issued by the World Trade Organization Technical
3.1.10 Inspection,
Barriers to Trade (TBT) Committee.
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
3.1.16 Supplementary Requirements.
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. 4. Ordering Information
Current edition approved Oct. 1, 2023. Published October 2023. Originally
4.1 Include the following information when placing orders
approved in 1986. Last previous edition approved in 2022 as B763/B763M – 15
(2022). DOI: 10.1520/B0763_B0763M-23. 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/B763M − 23
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 C83
...

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 − 15 (Reapproved 2022) B763/B763M − 23
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 establishescovers requirements for copper alloy sand castings for valve applications. Nominal compositions
2
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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used
independently of the other, and values from the two systems shall not be combined.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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
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 May 1, 2022Oct. 1, 2023. Published May 2022October 2023. Originally approved in 1986. Last previous edition approved in 20152022 as
B763/B763M – 15.B763/B763M – 15 (2022). DOI: 10.1520/B0763_B0763M-15R22.10.1520/B0763_B0763M-23.
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 service@astm.org. 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 − 23
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 . . . . . . . . .
brass
C86300 high-strength manganese bronze 61 . . . . . . 27 . . . 3 6 3 . . . . . . . . .
1 1
C86400 leaded manganese
...

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Property  
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nearest unit in the last right-hand place of figures
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Tensile strength  
nearest ksi (5 MPa)  
Elongation: below 5 %  
nearest multiple of 0.5 %  
5 % and over  
nearest 1 %
SCOPE
1.1 This specification establishes the requirements for seamless copper bus pipe and tube intended for use as electrical conductors.  
1.1.1 The product shall be made from one of the following coppers, as denoted in the ordering information:2    
Copper
UNS No.2  
Previously
Used
Designation  
Type of Copper  
C10100  
OFE  
Oxygen-free, electronic    
C10200  
OF  
Oxygen-free without residual deoxidants  
C10300  
—  
Oxygen-free, extra low phosphorus  
C10400, C10500,
C10700  
OFS  
Oxygen-free, silver bearing  
C11000  
ETP  
Electrolytic tough pitch  
C11300, C11400,
C11600  
STP  
Silver-bearing tough pitch  
C12000  
DLP  
Phosphorized, low residual phosphorus  
1.2 Unless otherwise specified, any one of the above coppers may be furnished.  
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, which are provided for information only and are not considered standard.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM B36/B36M-23(Specification)
Standard Specification for Brass Plate, Sheet, Strip, And Rolled Bar

ABSTRACT
This specification establishes the requirements brass plates, sheets, strips, and rolled bars made from UNS C21000, C22000, C22600, C23000, C24000, C26000, C26800, C27200, or C28000. Plates are generally available only in the hot-rolled temper. The standard tempers of as hot rolled, rolled, annealed, and annealed-to-temper materials are detailed in this specification as well as in other specifications listed herein. This specification also contains information on the required tensile strengths, Rockwell hardness and grain sizes of the materials. The Rockwell hardness test can be used to test for general conformity to the specification requirements for temper, tensile strength and grain size.
SCOPE
1.1 This specification establishes the requirements for brass (copper-zinc alloy) plate, sheet, strip, and rolled bar of the following alloys:    
Copper Alloy
UNS No.  
Type of Metal  
C21000  
Gilding  
C22000  
Commerical Bronze  
C22600  
Jewerly Bronze  
C23000  
Red Brass  
C24000  
Low Brass  
C26000  
Cartridge Brass  
C26800  
Yellow Brass  
C27200  
…  
C28000  
Muntz Metal  
1.2 Units—The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, SI units are shown in brackets. 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.  
1.3 The following safety hazard caveat pertains only to the test method(s) described in this specification.  
1.3.1 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM B505/B505M-23(Specification)
Standard Specification for Copper Alloy Continuous Castings

ABSTRACT
This specification establishes requirements for continuously cast rod, bar, tube, and shapes produced from copper alloys with nominal compositions. Castings produced to this specification may be manufactured for and supplied from stock. Mechanical tests are required only when specified by the purchaser in the purchase order. Continuous castings shall not be mechanically repaired, plugged, or burned in. Weld repairs may be made at the manufacturer's discretion. For sampling purposes, a lot shall consist of castings of the same composition and same cross-sectional dimensions, produced during the continuous operation of one casting machine, and submitted for inspection at one time unless specified otherwise. The specimen shall be comprised of the following major elements: copper, tin, lead, zinc, iron, aluminum, manganese, and nickel including cobalt. Residual elements may be present in cast copper-base alloys. The fractured bars shall be retained for chemical verification. Both the Brinell hardness reading and Rockwell hardness reading shall be taken on the grip end of the tension test bar. At the request of the purchaser castings shall be marked with the alloy number.
SCOPE
1.1 This specification covers requirements for continuously cast rod, bar, tube, and shapes produced from copper alloys with nominal compositions as listed in Table 1.2  
1.2 Castings produced to this specification may be manufactured for and supplied from stock. In such cases the manufacturer shall maintain heat traceability to specific manufacturing date and chemical analysis.  
1.3 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.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM B271/B271M-23(Specification)
Standard Specification for Copper-Base Alloy Centrifugal Castings

ABSTRACT
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.
SCOPE
1.1 This specification covers 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.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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