ASTM B927/B927M-23
(Specification)Standard Specification for Brass Rod, Bar, and Shapes
Standard Specification for Brass Rod, Bar, and Shapes
ABSTRACT
This specification establishes requirements for brass rod (round, hexagonal, and octagonal), bar (rectangular and square), and shapes of UNS Alloys C21000, C22000, C23000, C24000, C26000, C26800, C27000, and C27400. The material shall be made from cast billets, logs, or rods of copper alloy, as determined by chemical analysis. The products shall be manufactured by such hot working, cold working, and annealing processing as to produce a uniform wrought structure. The material shall conform to the chemical compositional requirements prescribed for copper, lead, iron, and zinc. The standard tempers, either hard or soft anneal (namely: O60, H01, H02, and H04), for rod and bar are specified. Tensile requirements to which the product shall conform includes tensile strength, yield strength, and elongation. The dimensional requirements for rods, bars, and shapes are given.
SCOPE
1.1 This specification establishes requirements for brass rod (round, hexagonal, and octagonal), bar (rectangular and square), and shapes of UNS Alloys C21000, C22000, C23000, C24000, C26000, C26800, C27000, C27400, C27450, C27451, C27453, C27550, and C28500.
1.2 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.
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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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: B927/B927M − 23
Standard Specification for
1
Brass Rod, Bar, and Shapes
This standard is issued under the fixed designation B927/B927M; 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.
1. Scope* Wrought Copper and Copper-Alloy Rod, Bar, Shapes and
Forgings
1.1 This specification establishes requirements for brass rod
B587 Specification for Welded Brass Tube
(round, hexagonal, and octagonal), bar (rectangular and
E8/E8M Test Methods for Tension Testing of Metallic Ma-
square), and shapes of UNS Alloys C21000, C22000, C23000,
terials
C24000, C26000, C26800, C27000, C27400, C27450,
E54 Test Methods for Chemical Analysis of Special Brasses
C27451, C27453, C27550, and C28500.
3
and Bronzes (Withdrawn 2002)
1.2 Units—The values stated in either SI units or inch-
E62 Test Methods for Chemical Analysis of Copper and
pound units are to be regarded separately as standard. The 3
Copper Alloys (Photometric Methods) (Withdrawn 2010)
values stated in each system may not be exact equivalents;
E478 Test Methods for Chemical Analysis of Copper Alloys
therefore, each system shall be used independently of the other.
E562 Test Method for Determining Volume Fraction by
Combining values from the two systems may result in non-
Systematic Manual Point Count
conformance with the standard.
2.2 JIS Standard:
1.3 This international standard was developed in accor-
JIS H 1068:2005 Method for Determination of Bismuth in
4
dance with internationally recognized principles on standard-
Copper and Copper Alloys
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
3. General Requirements
mendations issued by the World Trade Organization Technical
3.1 The following sections of Specification B249/B249M
Barriers to Trade (TBT) Committee.
constitute a part of this specification:
3.1.1 Terminology,
2. Referenced Documents
3.1.2 Materials and Manufacture,
2
2.1 ASTM Standards:
3.1.3 Workmanship, Finish, and Appearance,
B16/B16M Specification for Free-Cutting Brass Rod, Bar
3.1.4 Sampling,
and Shapes for Use in Screw Machines
3.1.5 Number of Tests and Retests,
B36/B36M Specification for Brass Plate, Sheet, Strip, And
3.1.6 Specimen Preparation,
Rolled Bar
3.1.7 Test Methods,
B121/B121M Specification for Leaded Brass Plate, Sheet,
3.1.8 Significance of Numerical Limits,
Strip, and Rolled Bar
3.1.9 Inspection,
B124/B124M Specification for Copper and Copper Alloy
3.1.10 Rejection and Rehearing,
Forging Rod, Bar, and Shapes
3.1.11 Certification,
B134/B134M Specification for Brass Wire
3.1.12 Mill Test Reports,
B135 Specification for Seamless Brass Tube [Metric] B0135
3.1.13 Product Marking,
_B0135M
3.1.14 Packaging and Package Marking, and
B249/B249M Specification for General Requirements for
3.1.15 Supplementary Requirements.
3.2 In addition, when a section with a title identical to that
referenced in 3.1, above, appears in this specification, it
1
This specification is under the jurisdiction of ASTM Committee B05 on Copper
contains additional requirements that supplement those that
and Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod,
Bar, Wire, Shapes and Forgings.
appear in Specification B249/B249M.
Current edition approved Oct. 1, 2023. Published October 2023. Originally
approved in 2003. Last previous edition approved in 2017 as B927/B927M – 17.
DOI: 10.1520/B0927_B0927M-23.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or The last approved version of this historical standard is referenced on
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM www.astm.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available from Japanese Standards Association (JSA), Mita MT Bldg., 3-13-12
the ASTM website. Mita, Minato-ku, Tokyo 108-0073, Japan, http://www.jsa.or.jp.
*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 ----------------------
B927/B927M − 23
4. Ordering Information 6.2 These composition limits do not preclude the presence
of other elements. By agreement between the manufacturer and
4.1 Include the following information when placing orders
the purchaser, limits may be established and analysis required
for product under this specification, as applicabl
...
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: B927/B927M − 17 B927/B927M − 23
Standard Specification for
1
Brass Rod, Bar, and Shapes
This standard is issued under the fixed designation B927/B927M; 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.
1. Scope*
1.1 This specification establishes requirements for brass rod (round, hexagonal, and octagonal), bar (rectangular and square), and
shapes of UNS Alloys C21000, C22000, C23000, C24000, C26000, C26800, C27000, C27400, C27450, C27451, C27453,
C27550, and C28500.
1.2 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.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
B16/B16M Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines
B36/B36M Specification for Brass Plate, Sheet, Strip, And Rolled Bar
B121/B121M Specification for Leaded Brass Plate, Sheet, Strip, and Rolled Bar
B124/B124M Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes
B134/B134M Specification for Brass Wire
B135 Specification for Seamless Brass Tube [Metric] B0135_B0135M
B249/B249M Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings
B587 Specification for Welded Brass Tube
E8/E8M Test Methods for Tension Testing of Metallic Materials
3
E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes (Withdrawn 2002)
3
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)
E478 Test Methods for Chemical Analysis of Copper Alloys
E562 Test Method for Determining Volume Fraction by Systematic Manual Point Count
2.2 JIS Standard:
4
JIS H 1068:2005 Method for Determination of Bismuth in Copper and Copper Alloys
1
This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod, Bar,
Wire, Shapes and Forgings.
Current edition approved April 1, 2017Oct. 1, 2023. Published April 2017October 2023. Originally approved in 2003. Last previous edition approved in 20132017 as
B927/B927M – 13.B927/B927M – 17. DOI: 10.1520/B0927_B0927M-17.10.1520/B0927_B0927M-23.
2
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.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Available from Japanese Standards Association (JSA), Mita MT Bldg., 3-13-12 Mita, Minato-ku, Tokyo 108-0073, Japan, http://www.jsa.or.jp.
*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 ----------------------
B927/B927M − 23
3. General Requirements
3.1 The following sections of Specification B249/B249M constitute a part of this specification:
3.1.1 Terminology,
3.1.2 Materials and Manufacture,
3.1.3 Workmanship, Finish, and Appearance,
3.1.4 Sampling,
3.1.5 Number of Tests and Retests,
3.1.6 Specimen Preparation,
3.1.7 Test Methods,
3.1.8 Significance of Numerical Limits,
3.1.9 Inspection,
3.1.10 Rejection and Rehearing,
3.1.11 Certification,
3.1.12 Mill Test Reports,
3.1.13 Product Marking,
3.1.14 Packaging and Package Marking, and
3.1.15 Supplementary Requirements.
3.2 In addition, when a section with a title identical to that referenced in 3.1, above, appears in this specification, it contains
additional requirements that supplement those that appear in Specification B249/B249M.
4. Ordering Information
4.1 Include the following information when placing orders for product under this specification,
...
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