ASTM B824-17
(Specification)Standard Specification for General Requirements for Copper Alloy Castings
Standard Specification for General Requirements for Copper Alloy Castings
ABSTRACT
This specification establishes the general requirements common to copper alloy castings of UNS Nos. C94700, C95300, C95400, C95410, C95500, C95520, and C96800. Materials shall be sampled and prepared, then tested accordingly to examine their conformance to mechanical (tensile and yield strength, hardness, and elongation), electrical (resistivity and conductivity), dimensional, chemical composition, and grain size requirements. In the event of conflict between this specification and the individual casting product specifications, the requirements of the casting specification shall take precedence.
SIGNIFICANCE AND USE
14.1 For the purpose of determining compliance with the specified limits for requirements of the properties listed in the following table, an observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29.
Property
Rounded Limit for Observed or
Calculated Value
Chemical Composition
Hardness
Electrical Resistivity
Electrical Conductivity
nearest unit in the last right-hand significance digit used in expressing the limiting value
Tensile Strength
nearest ksi (5 MPa)
Yield Strength
Elongation
nearest 1 %
Grain Size:
Under 0.060 mm
nearest multiple of 0.005 mm
0.060 mm and over
nearest 0.01 mm
SCOPE
1.1 This specification establishes general requirements common to ASTM copper alloy casting specifications B22/B22M, B61, B62, B66, B67, B148, B176, B271/B271M, B369, B427, B505/B505M, B584, B763/B763M, B770, and B806. These requirements apply to the casting specifications to the extent referenced therein.
1.1.1 In the event of conflict between this specification and a casting specification, the requirements of the casting specification shall take precedence.
1.2 The chemical composition and other requirements not included in this specification shall be prescribed in the casting product specifications.
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.
1.4 No precise quantitative relationship can be stated between the properties of the metal in various locations of the same casting or between the properties of castings and those of a test bar casting from the same metal. (See Appendix X1.)2
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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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:B824 −17
Standard Specification for
1
General Requirements for Copper Alloy Castings
This standard is issued under the fixed designation B824; 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.
3
1. Scope* 2.2 ASTM Standards:
B22/B22M Specification for Bronze Castings for Bridges
1.1 Thisspecificationestablishesgeneralrequirementscom-
and Turntables
mon to ASTM copper alloy casting specifications B22/B22M,
B61 Specification for Steam or Valve Bronze Castings
B61, B62, B66, B67, B148, B176, B271/B271M, B369, B427,
B62 Specification for Composition Bronze or Ounce Metal
B505/B505M, B584, B763/B763M, B770, and B806. These
Castings
requirements apply to the casting specifications to the extent
B66 Specification for Bronze Castings for Steam Locomo-
referenced therein.
tive Wearing Parts
1.1.1 In the event of conflict between this specification and
B67 Specification for Car and Tender Journal Bearings,
a casting specification, the requirements of the casting speci-
Lined
fication shall take precedence.
B148 Specification for Aluminum-Bronze Sand Castings
1.2 The chemical composition and other requirements not
B176 Specification for Copper-Alloy Die Castings
included in this specification shall be prescribed in the casting
B193 Test Method for Resistivity of Electrical Conductor
product specifications.
Materials
1.3 Units—The values stated in inch-pound units are to be B194 Specification for Copper-BerylliumAlloy Plate, Sheet,
regarded as standard. The values given in parentheses are
Strip, and Rolled Bar
mathematical conversions to SI units that are provided for B208 Practice for Preparing Tension Test Specimens for
information only and are not considered standard.
Copper Alloy Sand, Permanent Mold, Centrifugal, and
Continuous Castings
1.4 No precise quantitative relationship can be stated be-
B271/B271M Specification for Copper-BaseAlloy Centrifu-
tween the properties of the metal in various locations of the
gal Castings
same casting or between the properties of castings and those of
2
B369 Specification for Copper-Nickel Alloy Castings
a test bar casting from the same metal. (See Appendix X1.)
B427 Specification for Gear Bronze Alloy Castings
1.5 This international standard was developed in accor-
B505/B505M Specification for Copper Alloy Continuous
dance with internationally recognized principles on standard-
Castings
ization established in the Decision on Principles for the
B584 Specification for Copper Alloy Sand Castings for
Development of International Standards, Guides and Recom-
General Applications
mendations issued by the World Trade Organization Technical
B763/B763M Specification for Copper Alloy Sand Castings
Barriers to Trade (TBT) Committee.
for Valve Applications
B770 Specification for Copper-Beryllium Alloy Sand Cast-
2. Referenced Documents
ings for General Applications
2.1 The following documents, of the issue in effect on date
B806 Specification for CopperAlloy Permanent Mold Cast-
ofcastingpurchase,form,partofthisspecificationtotheextent
ings for General Applications
referenced herein:
B846 Terminology for Copper and Copper Alloys
E8/E8M Test Methods for Tension Testing of Metallic Ma-
terials
E10 Test Method for Brinell Hardness of Metallic Materials
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
Castings and Ingots for Remelting.
Current edition approved April 1, 2017. Published May 2017. Originally
3
approved in 1992. Last previous edition approved in 2016 as B824-16. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/B0824-17. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
For ASME Boiler and Pressure Vessel Code application, see related specifica- Standards volume information, refer to the standard’s Document Summary page on
tion in Section II of that code. 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 ----------------------
B824−17
E18 Test Methods for Rockwell Hardness of Metallic Ma- 6.3 When Rockwell Hardness testing is required by the
terials casting product specification, the results shall conform to the
E2
...
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: B824 − 16 B824 − 17
Standard Specification for
1
General Requirements for Copper Alloy Castings
This standard is issued under the fixed designation B824; 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 general requirements common to ASTM copper alloy casting specifications B22/B22M, B61,
B62, B66, B67, B148, B176, B271/B271M, B369, B427, B505/B505M, B584, B763/B763M, B770, and B806. These
requirements apply to the casting specifications to the extent referenced therein.
1.1.1 In the event of conflict between this specification and a casting specification, the requirements of the casting specification
shall take precedence.
1.2 The chemical composition and other requirements not included in this specification shall be prescribed in the casting product
specifications.
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.
1.4 No precise quantitative relationship can be stated between the properties of the metal in various locations of the same casting
2
or between the properties of castings and those of a test bar casting from the same metal. (See Appendix X1.)
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.
2. Referenced Documents
2.1 The following documents, of the issue in effect on date of casting purchase, form, part of this specification to the extent
referenced herein:
3
2.2 ASTM Standards:
B22/B22M Specification for Bronze Castings for Bridges and Turntables
B61 Specification for Steam or Valve Bronze Castings
B62 Specification for Composition Bronze or Ounce Metal Castings
B66 Specification for Bronze Castings for Steam Locomotive Wearing Parts
B67 Specification for Car and Tender Journal Bearings, Lined
B148 Specification for Aluminum-Bronze Sand Castings
B176 Specification for Copper-Alloy Die Castings
B193 Test Method for Resistivity of Electrical Conductor Materials
B194 Specification for Copper-Beryllium Alloy Plate, Sheet, Strip, and Rolled Bar
B208 Practice for Preparing Tension Test Specimens for Copper Alloy Sand, Permanent Mold, Centrifugal, and Continuous
Castings
B271/B271M Specification for Copper-Base Alloy Centrifugal Castings
B369 Specification for Copper-Nickel Alloy Castings
B427 Specification for Gear Bronze Alloy 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 Oct. 15, 2016April 1, 2017. Published October 2016May 2017. Originally approved in 1992. Last previous edition approved in 20142016 as
B824 – 14.B824-16. DOI: 10.1520/B0824-16.10.1520/B0824-17.
2
For ASME Boiler and Pressure Vessel Code application, see related specification in Section II of that code.
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’sstandard’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 ----------------------
B824 − 17
B505/B505M Specification for Copper Alloy Continuous Castings
B584 Specification for Copper Alloy Sand Castings for General Applications
B763/B763M Specification for Copper Alloy Sand Castings for Valve Applications
B770 Specification for Copper-Beryllium Alloy Sand Castings for General Applications
B806 Specification for Copper Alloy Permanent Mold Castings for General Applications
B846 Terminology for Copper and Copper Alloys
E8/E8M Test Methods for Tension Testing of Metallic Materials
E10 Test Method for Brinell Hardne
...
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