ASTM B16/B16M-19
(Specification)Standard Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines
Standard Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines
ABSTRACT
This specification establishes the requirements for free-cutting brass rod, bar, wire, and shapes of any specified cross-section produced from Copper Alloy UNS No. C36000 suitable for high-speed screw machining applications and moderate thread rolling. The chemical composition, temper, tensile, Rockwell hardness, and shape requirements are detailed.
SCOPE
1.1 This specification establishes the requirements for free-cutting brass rod, bar, wire, and shapes of any specified cross section produced from Copper Alloy UNS Nos. C36000 or C36010 suitable for high-speed screw machining applications and moderate thread rolling.
1.2 Units—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.
1.2.1 Within the text, SI units are shown in brackets.
1.3 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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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:B16/B16M −19
Standard Specification for
Free-Cutting Brass Rod, Bar and Shapes for Use in Screw
1
Machines
This standard is issued under the fixed designation B16/B16M; 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* B250/B250M Specification for General Requirements for
Wrought Copper Alloy Wire
1.1 This specification establishes the requirements for free-
B601 Classification forTemper Designations for Copper and
cutting brass rod, bar, wire, and shapes of any specified cross
Copper Alloys—Wrought and Cast
section produced from Copper Alloy UNS Nos. C36000 or
E8/E8M Test Methods for Tension Testing of Metallic Ma-
C36010 suitable for high-speed screw machining applications
terials
and moderate thread rolling.
E18 Test Methods for Rockwell Hardness of Metallic Ma-
1.2 Units—Values stated in either SI units or inch-pound
terials
units are to be regarded separately as standard. The values
E478 Test Methods for ChemicalAnalysis of CopperAlloys
stated in each system are not necessarily exact equivalents;
therefore, to ensure conformance with the standard, each
3. General Requirements
system shall be used independently of the other and values
3.1 The following sections of Specifications B249/B249M
from the two systems shall not be combined.
(rod,bar,andshapes),andB250/B250M(wroughtcopperalloy
1.2.1 Within the text, SI units are shown in brackets.
wire) constitute a part of this specification.
1.3 This standard does not purport to address all of the
3.1.1 Terminology;
safety concerns, if any, associated with its use. It is the
3.1.2 Materials and Manufacture;
responsibility of the user of this standard to establish appro-
3.1.3 Workmanship, Finish, and Appearance;
priate safety, health, and environmental practices and deter-
3.1.4 Sampling;
mine the applicability of regulatory limitations prior to use.
3.1.5 Number of Tests and Retest;
1.4 This international standard was developed in accor-
3.1.6 Specimen Preparation;
dance with internationally recognized principles on standard-
3.1.7 Test Methods;
ization established in the Decision on Principles for the
3.1.8 Significance of Numerical Limits;
Development of International Standards, Guides and Recom-
3.1.9 Inspection;
mendations issued by the World Trade Organization Technical
3.1.10 Rejection and Rehearing;
Barriers to Trade (TBT) Committee.
3.1.11 Certification;
3.1.12 Mill Test Report;
2. Referenced Documents
3.1.13 Packaging and Package Marking; and
2
3.1.14 Supplementary Requirements.
2.1 ASTM Standards:
B249/B249M Specification for General Requirements for
3.2 In addition, when a section with a title identical to those
Wrought Copper and Copper-Alloy Rod, Bar, Shapes and
referenced in 3.1 appears in this specification, it contains
Forgings
additional requirements that supplement those appearing in
Specifications B249/B249M and B250/B250M.
4. Ordering Information
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod,
4.1 Include the following information when placing orders
Bar, Wire, Shapes and Forgings.
for product under this specification, as applicable:
Current edition approved Oct. 1, 2019. Published November 2019. Originally
4.1.1 ASTM specification designation and year of issue
approved in 1917. Last previous edition approved in 2015 as B16/B16M–10 (2015).
DOI: 10.1520/B0016_B0016M–19.
(B16/B16M – XX).
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1.2 Copper Alloy UNS No. designations (C36000 or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
C36010, see Section 6 and Table 1). Unless otherwise
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. specified, the alloy supplied will be C36000.
*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
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B16/B16M−19
TABLE 1 Chemical Requirements
or supplier and purchaser, analysis may be required and limits
Copper Alloy UNS No. C36000 and C36010
established for the elements not cited. Percentage content of
Element Composition, %
elements shown as “remainder” (rem.) is calculated by
...
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: B16/B16M − 10 (Reapproved 2015) B16/B16M − 19
Standard Specification for
Free-Cutting Brass Rod, Bar and Shapes for Use in Screw
1
Machines
This standard is issued under the fixed designation B16/B16M; 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 the requirements for free-cutting brass rod, bar, wire, and shapes of any specified cross section
produced from Copper Alloy UNS Nos. C36000 or C36010 suitable for high-speed screw machining applications and moderate
thread rolling.
1.2 Units—Values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in
each system mayare not benecessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be
used independently of the other. Combiningother and values from the two systems may result in non-conformance with the
standard.shall not be combined.
1.2.1 Within the text, SI units are shown in brackets.
1.3 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 safety, health, and healthenvironmental 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.
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
B601 Classification for Temper Designations for Copper and Copper Alloys—Wrought and Cast
E8/E8M Test Methods for Tension Testing of Metallic Materials
E18 Test Methods for Rockwell Hardness of Metallic Materials
E478 Test Methods for Chemical Analysis of Copper Alloys
3. General Requirements
3.1 The following sections of Specifications B249/B249M (rod, bar, and shapes), and B250/B250M (wrought copper alloy wire)
constitute a part of this specification.
3.1.1 Terminology,Terminology;
3.1.2 Materials and Manufacture,Manufacture;
3.1.3 Workmanship, Finish, and Appearance,Appearance;
3.1.4 Sampling,Sampling;
3.1.5 Number of Tests and Retest,Retest;
3.1.6 Specimen Preparation,Preparation;
3.1.7 Test Methods,Methods;
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 May 1, 2015Oct. 1, 2019. Published May 2015November 2019. Originally approved in 1917. Last previous edition approved in 20102015 as
B16/B16M – 10.B16/B16M–10 (2015). DOI: 10.1520/B0016_B0016M-10R15.10.1520/B0016_B0016M–19.
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’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 ----------------------
B16/B16M − 19
3.1.8 Significance of Numerical Limits,Limits;
3.1.9 Inspection,Inspection;
3.1.10 Rejection and Rehearing,Rehearing;
3.1.11 Certification,Certification;
3.1.12 Mill Test Report,Report;
3.1.13 Packaging and Package Marking,Marking; and
3.1.14 Supplementary Requirements.
3.2 In addition, when a section with a title identical to those referenced in 3.1 appears in this specification, it contains additional
requirements that supplement those appearing in Specifications B249/B249M and B250/B250M.
4. Ordering Information
4.1 Include the following information when placing orders for product under this specification, as applicable:
4.1.1 ASTM specification designation and y
...
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