ASTM B140.pdf
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Designation: B 140/B 140M – 01
Standard Specification for
Copper-Zinc-Lead (Red Brass or Hardware Bronze) Rod,
Bar, and Shapes
1
This standard is issued under the fixed designation B 140/B 140M; 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 *
1.1 This specification establishes the requirements for
copper-zinc-lead (leaded red brass or hardware bronze) rod,
bar, and shapes of UNS Alloy Nos. C31400, C31600, and
C32000 available for screw machine applications.
1.2 The values stated in inch-pound units or SI units are to
be regarded separately as standard. Within the text, SI units are
shown in brackets. The values in each system are not exact
equivalents; therefore, each system shall be used independently
of the other. Combining values from the two systems may
result in nonconformance with the specification.
2. Referenced Documents
2.1 ASTM Standards:
B 249/B 249M Specification for General Requirements for
Wrought Copper and Copper-Alloy Rod, Bar, Shapes and
Forgings
2
B 601 Classification for Temper Designations for Copper
and Copper Alloys—Wrought and Cast
2
B 846 Terminology for Copper and Copper Alloys
2
E 8 Test Methods for Tension Testing of Metallic Materials
3
E 8M Test Methods for Tension Testing of Metallic Mate-
rials [Metric]
3
E 62 Test Methods for Chemical Analysis of Copper and
Copper Alloys (Photometric Methods)
4
E 478 Test Methods for Chemical Analysis of Copper
Alloys
4
3. Terminology
3.1 For the definitions of general terms related to copper and
copper alloys, refer to Terminology Standard B 846.
4. Ordering Information
4.1 Contracts or purchase orders for product to this speci-
fication should include the following information:
4.1.1 ASTM designation and year of issue,
4.1.2 Copper Alloy UNS No. designation (Section 1),
4.1.3 Temper designation (Section 7),
4.1.4 Quantity; total weight or length, or number of pieces
of each temper, form, or alloy.
4.1.5 Dimensions—diameter, distance between parallel
faces,
4.1.6 How furnished; specific lengths with or without ends,
and
4.1.7 When product is purchased for agencies of the U.S.
government. (B 249/B 249M).
4.2 The following options are available to this specification
and should be specified in the contract or purchase order when
required:
4.2.1 Heat identification or traceability details,
4.2.2 Certification (Specification B 249/B 249M), and
4.2.3 Mill Test Reports (Specification B 249/B 249M).
5. Material and Manufacture
5.1 Material:
5.1.1 The starting material shall be cast billets, logs, or rods
of Copper Alloy UNS Nos. C31400, C31600, or C32000 and
shall be of such soundness and structure as to enable them to
process into the desired product.
5.2 Manufacture:
5.2.1 The product shall be manufactured by such hot work-
ing, cold working, straightening, and annealing processing
needed to produce a uniform wrought structure and obtain the
properties specified in the purchase order or contract.
6. Chemical Composition
6.1 The material composition shall conform to the require-
ments of Table 1 for the CopperAlloy UNS No. specified in the
ordering information.
6.1.1 These compositional limits do not preclude the pres-
ence of other elements. When required, limits may be estab-
lished and analysis required for unnamed elements by agree-
ment between the supplier and the purchaser.
6.2 For copper alloys in which zinc is specified as the
remainder, either copper or zinc may be taken as the difference
between the sum of all elements analyzed and 100 %. When
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 Oct. 10, 2001. Published December 2001. Originally
published as B 140 – 41T. Last previous edition B 140 – 97
e2
.
2
Annual Book of ASTM Standards, Vol 02.01.
3
Annual Book of ASTM Standards, Vol 03.01.
4
Annual Book of ASTM Standards, Vol 03.05.
1
*A Summary of Changes section appears at the end of this standard.
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