ASTM B371-96
(Specification)Standard Specification for Copper-Zinc-Silicon Alloy Rod (Withdrawn 2002)
Standard Specification for Copper-Zinc-Silicon Alloy Rod (Withdrawn 2002)
SCOPE
1.1 This specification establishes the requirements for copper-zinc-silicon alloy rod produced in Copper Alloy UNS Nos. C69400, C69430, C69700, and C69710.
1.1.1 If the purchaser does not specify the alloy to be supplied, product is permitted to be furnished in any of the alloys named in 1.1.
1.2 The values stated in inch-pound units are the standard. Values given in parentheses are for information only. Note 1-Mercury is a definite health hazard in use and disposal.
General Information
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Standards Content (Sample)
Designation: B 371 – 96
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
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Copper-Zinc-Silicon Alloy Rod
This standard is issued under the fixed designation B 371; 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 * 4.1.3 Form—Cross section such as round, hexagon, etc.,
4.1.4 Dimensions—Diameter or distance between parallel
1.1 This specification establishes the requirements for
surfaces,
copper-zinc-silicon alloy rod produced in Copper Alloy UNS
4.1.5 Length,
Nos. C69400, C69430, C69700, and C69710.
4.1.6 Quantity—Total weight, footage, or number of pieces,
1.1.1 If the purchaser does not specify the alloy to be
and
supplied, product is permitted to be furnished in any of the
4.1.7 When product is purchased for agencies of the U.S.
alloys named in 1.1.
Government (Section 9).
1.2 The values stated in inch-pound units are the standard.
4.2 The following requirements are optional and shall be
Values given in parentheses are for information only.
included in the contract or purchase order when required:
NOTE 1—Mercury is a definite health hazard in use and disposal.
4.2.1 Mercurous nitrate test (Section 8),
4.2.2 Certification, and
2. Referenced Documents
4.2.3 Mill Test report (Specification B 249).
2.1 ASTM Standards:
B 154 Test Method for Mercurous Nitrate Test for Copper
5. Material and Manufacture
2
and Copper Alloys
5.1 Material:
B 249 Specification for General Requirements for Wrought
5.1.1 The material of manufacture shall be cast billets, logs,
2
Copper and Copper Alloy Rod, Bar, Shapes, and Forgings
or rods of Copper Alloy UNS Nos. C69400, C69430, C69700,
2
B 846 Terminology for Copper and Copper Alloys
or C69710 of such soundness and structure as to make them
3
E 8 Test Methods for Tension Testing of Metallic Materials
suitable for processing into the desired product.
E 54 Test Methods for Chemical Analysis of Special
5.2 Manufacture:
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Brasses and Bronzes
5.2.1 The product shall be manufactured by hot extrusion
E 62 Test Methods for Chemical Analysis of Copper Alloys
and finished by such cold working, annealing, and straighten-
4
(Photometric Methods)
ing as may be necessary to achieve the required properties.
E 478 Test Methods for Chemical Analysis of Copper
4
Alloys
6. Chemical Composition
6.1 The material shall conform to the requirements specified
3. Terminology
in Table 1 for the Copper Alloy UNS No. designated in the
3.1 Refer to Terminology B 846 for definitions of general
ordering information.
terms.
6.1.1 These composition limits do not preclude the presence
of other elements. When required, limits shall be established
4. Ordering Information
and analysis required for unnamed elements by agreement
4.1 Orders for product under this specification shall include
between the manufacturer and the purchaser.
the following information:
6.2 For copper alloys in which zinc is specified as the
4.1.1 ASTM designation and year of issue (for example,
remainder, either copper or zinc is permitted to be taken as the
B371 – 93),
difference between the sum of results for all elements analyzed
4.1.2 Copper alloy designation (for example, C69400),
and 100 %. When copper is so determined, that difference
value shall conform to the requirements given in Table 1.
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This specification is under the jurisdiction of ASTM Committee B-5 on Copper
6.3 When all elements specified in Table 1 for the copper
and Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod,
alloy designated in the ordering information are determined,
Bar, Wire, Shapes, and Forgings.
the sum of results shall be 99.5 % minimum.
Current edition approved April 10, 1996. Published June 1996. Originally
published as B 371 – 61. Last previous edition B 371 – 93.
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7. Mechanical Property Requirements
Annual Book of ASTM Standards, Vol 02.01.
3
Annual Book of ASTM Standards, Vol 03.01.
7.1 Tensile Requirements:
4
Annual Book of ASTM Standards, Vol 03.05.
*A Summary of Changes section appears at the end of this standard.
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B 371
TABLE 1 Chemical Requirements
Composition, %
Copper Alloy UNS No.
Element
C69400 C69430 C69700 C69710
min max min max min max min max
Copper 80.0 83.0 80.0 83.0 75.0 80.0 75.0 80.0
Silicon 3.5 4.5 3.5 4.5 2.5 3.5 2.5 3.5
Lead . 0.30 . 0.30 0.50 1.5 0.50 1.5
Iron . 0.20 . 0.20 . 0.20 . 0.20
Manganese . . . . . 0.40 . 0.40
Arsenic . . 0.03 0.06 . . 0.03 0.06
Antimony . . . . . . . .
Phosphorus . . . . . . . .
Zinc remainder remainder
...
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