Standard Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines

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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 The 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.

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09-Jan-2000
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ASTM B16/B16M-00 - Standard Specification for Free-Cutting Brass Rod, Bar and Shapes for Use in Screw Machines
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: B 16/B 16M – 00
Standard Specification for
Free-Cutting Brass Rod, Bar and Shapes for Use in Screw
1
Machines
This standard is issued under the fixed designation B 16/B 16M; 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 (e) 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 * 3. Ordering Information
1.1 This specification establishes the requirements for free- 3.1 Contracts or purchase orders for product furnished
cutting brass rod, bar, wire, and shapes of any specified cross under this specification shall contain the following informa-
sectionproducedfromCopperAlloyUNSNo.C36000suitable tion:
for high-speed screw machining applications and moderate 3.1.1 ASTM specification designation and year of issue
thread rolling. (B 16/B 16M-XX).
1.2 The values stated in either inch-pound units or in SI 3.1.2 Copper Alloy UNS No. designation (C36000, see
units are to be regarded separately as the standard. Within the Section 6 and Table 1).
text, the SI units are shown in brackets. The values stated in 3.1.3 Temper (see Section 7 and Tables 2 and 3).
each system are not exact equivalents; therefore, each system 3.1.4 Product cross section form (for example, round, hex-
shall be used independent of the other. Combining values from agonal, square, etc.).
the two systems may result in nonconformance with the 3.1.5 Dimensions (see Section 9).
specification. 3.1.6 How furnished: straight lengths or coils (see 5.2).
3.1.7 Edge contours (see Section 9).
2. Referenced Documents
3.1.8 Quantity; total weight, footage, or number of pieces
2.1 ASTM Standards: for each size.
B 249 Specification for General Requirements for Wrought
3.1.9 When product is purchased for applications requiring
2
CopperandCopper-AlloyRod,Bar,Shapes,andForgings thread rolling (see 1.1, Tables 2 and 3).
B 249M Specification for General Requirements for 3.1.10 When product is purchased for agencies of the U.S.
Wrought Copper and Copper-Alloy Rod, Bar Shapes and
Government (see Section 11).
2
Forgings [Metric] 3.2 The following options are available and shall be speci-
B 250 Specification for General Requirements for Wrought
fied at the time of placing the order when required:
2
1
Copper-Alloy Wire 3.2.1 Tensile test for product ⁄2 in. [12 mm] and over (see
B 250M Specification for General Requirements for
8.2.1).
2
Wrought Copper-Alloy Wire 3.2.2 Certification (refer to Specifications B 249 and
B 601 Practice for Temper Designations for Copper and
B 249M or B 250 and B 250M).
3
Copper Alloys—Wrought and Cast 3.2.3 Mill Test Report (refer to Specifications B 249 and
E 8/E 8M Test Methods for Tension Testing of Metallic
B 249M or B 250 and B 250M).
3
Materials
4. General Requirements
E 18 Test Methods for Rockwell Hardness and Rockwell
3
Superficial Hardness of Metallic Materials 4.1 The following sections of Specifications B 249, B 249M
E 478 Test Methods for Chemical Analysis of Copper (rod, bar, and shapes), B 250, and B 250M (wrought copper
4
Alloys alloy wire) constitute a part of this specification.
4.1.1 Terminology,
4.1.2 Materials and Manufacture,
1
This specification is under the jurisdiction ofASTM Committee B-5 on Copper
4.1.3 Workmanship, Finish, and Appearance,
and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod,
4.1.4 Sampling,
Bar, Shapes, Wire, and Forgings.
4.1.5 Number of Tests and Retest,
Current edition approved Jan. 10, 2000. Published March 2000. Originally
published as B 16 – 17 T. Last previous edition B 16 – 92.
4.1.6 Specimen Preparation,
2
Annual Book of ASTM Standards, Vol 02.01.
4.1.7 Test Methods,
3
Annual Book of ASTM Standards, Vol 03.01.
4
4.1.8 Significance of Numerical Limits,
Annual Book of ASTM Standards, Vol 03.06.
*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.
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B 16/B 16M
TABLE 1 Chemical Requirements
8. Mechanical Property Requirements
Copper Alloy UNS No. C36000
8.1 Rockwell Hardness:
Element Composition, %
1
8.1.1 Product ⁄2 in. [12 mm], and over in diameter or
Copper 60.0 - 63.0
distance between parallel surfaces, shall conform with the
Lead 2.5 - 3.7
requirements given in Table 3 for temper, size, and form when
Iron, max 0.35
Zinc remainder
tested in accordance with Test Methods E 18.
8.1.1.1 Rockwell hardness shall be the acceptance criterion
1
for sizes ⁄2 in. [12 mm], or greater, based upon mechanical
properties, except when tensile requirements are sp
...

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