ASTM B974/B974M-12
(Specification)Standard Specification for Free-Cutting Bismuth Brass Rod, Bar and Wire
Standard Specification for Free-Cutting Bismuth Brass Rod, Bar and Wire
SCOPE
1.1 This specification establishes the requirements for free-cutting bismuth brass rod, bar and wire of UNS Alloy No. C49250, C49260 and C49340 suitable for high-speed screw machine work, or for general applications.
1.2 Typically, product made to this specification is furnished as straight lengths, or coils when requested.
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.
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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:B974/B974M −12
StandardSpecification for
1
Free-Cutting Bismuth Brass Rod, Bar and Wire
This standard is issued under the fixed designation ; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* E54 Test Methods for ChemicalAnalysis of Special Brasses
3
and Bronzes (Withdrawn 2002)
1.1 This specification establishes the requirements for free-
E62 Test Methods for Chemical Analysis of Copper and
cutting bismuth brass rod, bar and wire of UNS Alloy No.
3
CopperAlloys (Photometric Methods)(Withdrawn 2010)
C49250, C49260 and C49340 suitable for high-speed screw
E92 Test Method forVickers Hardness of Metallic Materials
machine work, or for general applications.
3
(Withdrawn 2010)
1.2 Typically,productmadetothisspecificationisfurnished
E478 Test Methods for ChemicalAnalysis of CopperAlloys
as straight lengths, or coils when requested.
2.2 Other Standards:
1.3 Units—The values stated in either SI units or inch- JIS H 1068:2005 Method for Determination of Bismuth in
4
pound units are to be regarded separately as standard. The Copper and Copper Alloys
values stated in each system may not be exact equivalents; ISO 5959-1984 Copper and copper alloys – determination of
bismuth content – Diethyldithiocarbamate spectrometric
therefore,eachsystemshallbeusedindependentlyoftheother.
5
Combining values from the two systems may result in non- method
conformance with the standard.
3. General Requirements
1.4 This standard does not purport to address all of the
3.1 The following sections of Specification B249/B249M
safety concerns, if any, associated with its use. It is the
constitute a part of this specification:
responsibility of the user of this standard to establish appro-
3.1.1 Terminology,
priate safety and health practices and determine the applica-
3.1.2 Materials and Manufacture,
bility of regulatory limitations prior to use.
3.1.3 Sampling,
2. Referenced Documents 3.1.4 Number of Tests and Retests,
2
3.1.5 Specimen Preparation,
2.1 ASTM Standards:
3.1.6 Test Methods,
B249/B249M Specification for General Requirements for
3.1.7 Inspection,
Wrought Copper and Copper-Alloy Rod, Bar, Shapes and
3.1.8 Certification,
Forgings
3.1.9 Test Reports.
B250/B250M Specification for General Requirements for
Wrought Copper Alloy Wire
3.2 In addition, when a section with a title identical to that
B846 Terminology for Copper and Copper Alloys
referenced in 3.1 appears in this specification, it contains
E8 Test Methods for Tension Testing of Metallic Materials
additional requirements which supplement those appearing in
E8M Test Methods forTensionTesting of Metallic Materials
Specification B249/B249M.
3
[Metric] (Withdrawn 2008)
4. Terminology
E53 Test Method for Determination of Copper in Unalloyed
Copper by Gravimetry
4.1 For definitions of terms related to copper and copper
alloys, refer to Terminology B846.
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
5. Ordering Information
and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod,
Bar, Wire, Shapes and Forgings.
5.1 Include the following information in orders for prod-
Current edition approved April 1, 2012. Published May 2012. Originally
ucts:
approved in 2010. Last previous edition approved in 2010 as B974/B974M – 10.
5.1.1 ASTM designation and year of issue,
DOI: 10.1520/B0974_B0974M-12.
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
4
Standards volume information, refer to the standard’s Document Summary page on Available from Japanese Industrial Standards through http://www.JIS.or.jp, or
the ASTM website. www.webstore.jsa.or.jp/webstore/JIS/Flowcontrol.JSP.
3 5
The last approved version of this historical standard is referenced on Available from International Organization of Standards, http://www.ISO/ISO/
www.astm.org. store.htm.
*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 ----------------------
B974/B974M−12
5.1.2 Copper UNS No. designation, 7. Chemical Composition
5.1.3 Howfurnished(rodorbarinstraightlength,orwirein
7.1 The material shall conform to the chemical composition
coils)
requirements in Table 1 for the UNS Number specified in the
5.1.4 Temper,
ordering information.
5.1.5 Cross section (round, hexagonal, square, rectangular),
7.2 These composition limits do not preclude the presence
5.1.6 Dimensions; diameter or distance between parallel
of o
...
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:B974/B974M–10 Designation: B974/B974M – 12
Standard Specification for
1
Free-Cutting Bismuth Brass Rod, Bar and Wire
This standard is issued under the fixed designation B974/B974M; 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
1.1This specification establishes the requirements for free-cutting bismuth brass rod, bar and wire of UNS Alloy No. C49250
and C49260 suitable for high-speed screw machine work, or for general applications. *
1.1 This specification establishes the requirements for free-cutting bismuth brass rod, bar and wire of UNSAlloy No. C49250,
C49260 and C49340 suitable for high-speed screw machine work, or for general applications.
1.2 Typically, product made to this specification is furnished as straight lengths, or coils when requested.
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.
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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
B249/B249M Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes and Forgings
B250/B250M Specification for General Requirements for Wrought Copper Alloy Wire
B846 Terminology for Copper and Copper Alloys
E8 Test Methods for Tension Testing of Metallic Materials
E8M Test Methods for Tension Testing of Metallic Materials [Metric]
E53 Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
E92 Test Method for Vickers Hardness of Metallic Materials
E478 Test Methods for Chemical Analysis of Copper Alloys
2.2 Other Standards:
3
JIS H 1068:2005 Method for Determination of Bismuth in Copper and Copper Alloys
4
ISO 5959-1984 Copper and copper alloys – determination of bismuth content – Diethyldithiocarbamate spectrometric method
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 Sampling,
3.1.4 Number of Tests and Retests,
3.1.5 Specimen Preparation,
3.1.6 Test Methods,
1
This specification is under the jurisdiction ofASTM Committee B05 on Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod, Bar,
Wire, Shapes and Forgings.
Current edition approved Oct. 1, 2010. Published November 2010.
Current edition approved April 1, 2012. Published May 2012. Originally approved in 2010. Last previous edition approved in 2010 as B974/B974M – 10. DOI:
10.1520/B0974_B0974M-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Japanese Industrial Standards through http://www.JIS.or.jp, or www.webstore.jsa.or.jp/webstore/JIS/Flowcontrol.JSP.
4
Available from International Organization of Standards, http://www.ISO/ISO/store.htm.
*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 ----------------------
B974/B974M – 12
3.1.7 Inspection,
3.1.8 Certification,
3.1.9 Test Reports.
3.2 In addition, when a section with a title identical to that referenced in 3.1 appears in this specification, it contains additional
requirements which supplement those appearing in Specification B249/B249M.
4. Terminology
4.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
5. Ordering Information
5.1 Include the following information in orders for products:
5.1.1 ASTM designation and year of issue,
5.1
...
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