ASTM B16/B16M-05
(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 No. C36000 suitable for high-speed screw machining applications and moderate thread rolling.
1.2 UnitsValues 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.
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: B16/B16M – 05
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 Department of Defense.
1. Scope* E8M Test Methods for Tension Testing of Metallic Materi-
3
als [Metric]
1.1 This specification establishes the requirements for free-
E18 Test Methods for Rockwell Hardness of Metallic Ma-
cutting brass rod, bar, wire, and shapes of any specified cross
terials
sectionproducedfromCopperAlloyUNSNo.C36000suitable
E478 TestMethodsforChemicalAnalysisofCopperAlloys
for high-speed screw machining applications and moderate
thread rolling.
3. General Requirements
1.2 Units—Values stated in either inch-pound units or SI
3.1 The following sections of Specifications B249/B249M
units are to be regarded separately as standard. Within the text,
(rod,bar,andshapes),andB250/B250M(wroughtcopperalloy
SI units are shown in brackets. The values stated in each
wire) constitute a part of this specification.
system may not be exact equivalents; therefore, each system
3.1.1 Terminology,
shall be used independently of the other. Combining values
3.1.2 Materials and Manufacture,
from the two systems may result in non-conformance with the
3.1.3 Workmanship, Finish, and Appearance,
standard.
3.1.4 Sampling,
1.3 This standard does not purport to address all of the
3.1.5 Number of Tests and Retest,
safety concerns, if any, associated with its use. It is the
3.1.6 Specimen Preparation,
responsibility of the user of this standard to establish appro-
3.1.7 Test Methods,
priate safety and health practices and determine the applica-
3.1.8 Significance of Numerical Limits,
bility of regulatory limitations prior to use.
3.1.9 Inspection,
2. Referenced Documents 3.1.10 Rejection and Rehearing,
2
3.1.11 Certification,
2.1 ASTM Standards:
3.1.12 Mill Test Report,
B249/B249M Specification for General Requirements for
3.1.13 Packaging and Package Marking, and
Wrought Copper and Copper-Alloy Rod, Bar, Shapes and
3.1.14 Supplementary Requirements.
Forgings
3.2 In addition, when a section with a title identical to those
B250/B250M Specification for General Requirements for
referenced in 3.1 appears in this specification, it contains
Wrought Copper Alloy Wire
additional requirements that supplement those appearing in
B601 Classification for Temper Designations for Copper
Specifications B249/B249M and B250/B250M.
and Copper Alloys—Wrought and Cast
E8 Test Methods for Tension Testing of Metallic Materials
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 year of issue
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
(B16/B16M – XX).
and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod,
Bar, Wire, Shapes and Forgings. 4.1.2 Copper Alloy UNS No. designation (C36000, see
Current edition approved March 1, 2005. Published March 2005. Originally
Section 6 and Table 1).
approved in 1917. Last previous edition approved in 2000 as B16 – 00. DOI:
4.1.3 Temper (see Section 7 and Tables 2-5).
10.1520/B0016_B0016M-05.
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
3
Standards volume information, refer to the standard’s Document Summary page on Withdrawn. The last approved version of this historical standard is referenced
the ASTM website. on www.astm.org.
*ASummary 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 – 05
TABLE 2 Tensile Requirements, inch-pound
NOTE—See Table 3 for SI values.
Yield Strength
at 0.5 %
A
Temper Designation Diameter or Distance Between Tensile Strength, Elongation,
Extension
Standard Name Parallel Surfaces, in. min, ksi min, %
under Load,
min, ksi
Rod and Wire
O60 soft 1 and under 48 20 15
anneal
over 1 to 2, incl. 44 18 20
over 2 40 15 25
B
1
H02 half-hard ⁄2 and under 57 25 7
C
1
over ⁄2 to 1, incl. 55 25 10
over 1 to 2, incl. 50 20 15
over 2 to 4, incl., and 45 15 20
over 4 40 15 20
1 3
H04 hard ⁄16 to ⁄16, incl. 80 45
3 1
over ⁄16 to ⁄2, incl. 70 35 4
1 3
over ⁄2 to ⁄4, incl. 65 30 6
Bar
Standard Name Thickness, in. Width, in.
O60 soft anneal 1 and under 6 and under 44
...
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:B 16/B 16M–00 Designation: B16/B16M – 05
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 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 CopperAlloy UNS No. C36000 suitable for high-speed screw machining applications and moderate thread rolling.
1.2The values stated in either inch-pound units or in SI units are to be regarded separately as the standard. Within the text, the
SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used
independent of the other. Combining values from the two systems may result in nonconformance with the specification.
1.2 Units—Valuesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,SIunits
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 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:
B249249/B249M Specification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar, Shapes,Shapes and
Forgings
2
B249MSpecification for General Requirements for Wrought Copper and Copper-Alloy Rod, Bar Shapes and Forgings [Metric]
250/B250M Specification for General Requirements for Wrought Copper Alloy Wire
2
B250Specification for General Requirements for Wrought Copper-Alloy Wire 601 Classification for Temper Designations for
Copper and Copper AlloysWrought and Cast
2
B250MSpecification for General Requirements for Wrought Copper-Alloy Wire E8 Test Methods for Tension Testing of
Metallic Materials
B601Practice for Temper Designations for Copper and Copper Alloys—Wrought and Cast E8M Test Methods for Tension
Testing of Metallic Materials
[Metric]
E8/E 8M18 Test Methods for Tension TestingRockwell Hardness of Metallic Materials
3
E18Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials
E478478 Test Methods for Chemical Analysis of Copper Alloys
3. General Requirements
3.1 ThefollowingsectionsofSpecificationsB249/B249M(rod,bar,andshapes),andB250/B250M(wroughtcopperalloywire)
constitute a part of this specification.
3.1.1 Terminology,
3.1.2 Materials and Manufacture,
3.1.3 Workmanship, Finish, and Appearance,
1
This specification is under the jurisdiction ofASTM Committee B-5 B05 on Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod,
Bar, Shapes, Wire, and Forgings.
Current edition approved Jan. 10, 2000. Published March 2000. Originally published as B 16–17T. Last previous edition B 16–92.on Rod, Bar,Wire, Shapes and Forgings.
Current edition approved March 1, 2005. Published March 2005. Originally approved in 1917. Last previous edition approved in 2000 as B16 – 00. DOI:
10.1520/B0016_B0016M-05.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
, Vol 02.01.volume information, refer to the standard’s Document Summary page on the ASTM website.
*ASummary 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 – 05
3.1.4 Sampling,
3.1.5 Number of Tests and Retest,
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 Report,
3.1.13 Packaging and Package Marking, and
3.1.14 Supplementary Requirements.
3.2 In addition, when a
...
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