ASTM B206/B206M-97

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B 206/B206M – 97
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
Copper-Nickel-Zinc (Nickel Silver) Wire and Copper-Nickel
Alloy Wire
This standard is issued under the fixed designation B 206/B206M; 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 * E 8M Test Methods for Tension Testing of Metallic Mate-
rials [Metric]
1.1 This specification establishes the requirements for wire
E 62 Test Methods for Chemical Analysis of Copper and
in round, hexagonal, octagonal, rectangular and square form of
Copper Alloys (Photometric Methods)
UNS Alloy Nos. C71000, C74500, C75200, C75700, C76400,
E 112 Test Methods for Determining Average Grain Size
C77000 and C79200.
E 478 Test Methods for Chemical Analysis of Copper
1.2 This specification is general in that the product is used in
Alloys
many applications where the requirements are too particular to
be specified by standard test results.
3. Terminology
1.2.1 For particular or critical applications it is advisable for
3.1 For the definition of general terms related to copper and
the purchaser to submit samples or drawings to the manufac-
copper alloys, refer to Terminology B 846.
turer to secure an adjustment of anneal or temper to suit the
3.2 Description of Terms Specific to This Specification:
application for which the product is intended.
3.2.1 unaided eye—permits the use of corrective optical
1.3 The following information is intended to assist the
lenses necessary to obtain normal vision.
purchaser in the application of this specification:
1.3.1 For most general applications—UNS Alloy Nos.
4. Ordering Information
C71000, C74500, C75200 and C75700.
4.1 Contracts or purchase orders for product to this speci-
1.3.2 For hard or spring tempers—UNS Alloy Nos. C76400
fication should include the following information:
and C77000.
4.1.1 ASTM designation and year of issue,
1.3.3 For ease of machining—UNS Alloy No. C79200.
4.1.2 Copper Alloy UNS No. (Section 1),
1.4 The values stated in inch-pound units or SI units are to
4.1.3 Temper designation (Section 7),
be regarded separately as standard. Within the test, SI units are
4.1.4 Quantity—Total weight or length or number of pieces
shown in brackets. The values in each system are not exact
of each temper, form, or alloy.
equivalents; therefore, each system shall be used independently
4.1.5 Dimensions—Diameter, distance between parallel
of the other. Combining values from the two systems may
faces,
result in nonconformance with the specification.
4.1.6 How furnished—specific lengths, coils, reels, etc., and
2. Referenced Documents 4.1.7 When product is purchased for agencies of the U.S.
Government (B 250 or B250M).
2.1 ASTM Standards:
4.2 The following options are available to this specification
B 250 Specification for General Requirements for Wrought
2 and should be specified in the contract or purchase order when
Copper-Alloy Wire
required:
B 250M Specification for General Requirements for
2 4.2.1 Heat identification or traceability details,
Wrought Copper-Alloy Wire [Metric]
4.2.2 Certification (B 250 or B250M), and
B 601 Practice for Temper Designations for Copper and
2 4.2.3 Mill Test Reports (B 250 or B250M).
Copper Alloy-Wrought and Cast
E 8 Test Methods for Tension Testing of Metallic Materials
5. Material and Manufacture
5.1 Material:
5.1.1 The material shall be made from cast or wrought
This specification is under the jurisdiction of ASTM Committee B-5 on Copper
billets, logs or rods of Copper Alloy UNS Nos. C71000,
and Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod,
C74500, C75200, C75700, C76400, C77000 or C79200, and
Bar, Wire, Shapes and Forgings.
Current edition approved Feb. 10, 1997. Published April 1997. Originally shall be of such soundness and structure as to enable them to
published as B 206 – 46T. Last previous edition B 206 – 93.
Annual Book of ASTM Standards, Vol 02.01.
3 4
Annual Book of ASTM Standards, Vol 03.01. Annual Book of ASTM Standards, Vol 03.05.
*A Summary of Changes section appears at the end of this standard.
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
B 206/B206M
be processed into the desired product. H (cold-worked) condition. Acceptance or rejection based
5.2 Manufacture: upon mechanical properties shall depend upon the tensile test
5.2.1 The product shall be manufactured by such hot- results obtained when tested in accordance with Test Methods
working, cold-working, straightening, coiling or reeling and E 8 or E 8M.
annealing processing needed to produce a uniform wrought
8.1.2 Requirements for round wire in sizes smaller than
structure and obtain the finish properties specified in the 0.020 in. [0.50 mm] or larger than 0.250 in. [6.0 mm] shall be
purchase order or contract.
by agreement between the supplier and the purchaser.
8.1.3 Requirements for wire other than round shall be by
6. Chemical Composition
agreement between the supplier and the purchaser.
6.1 The material composition shall conform to the require-
9. Grain Size for Annealed Wire
ments of Table 1 for the Copper Alloy UNS No. specified in the
ordering information:
9.1 Product furnished in the OS (annealed) condition shall
6.1.1 These compositional limits do not preclude the pres-
conform to the requirements specified in Table 4 for the temper
ence of other elements. When required, limits may be estab-
and Copper Alloy UNS No. designated in the ordering infor-
lished and analysis required for unnamed elements by agree-
mation, when tested in accordance with Test Methods E 112.
ment between the supplier and the purchaser.
9.1.1 Grain size shall be the standard temper test for product
6.2 For UNS No. C71000, in which copper is listed as the
ordered in the OS (annealed) condition and acceptance or
remainder, the copper content may be determined as the
rejection based upon grain size shall depend upon the average
difference between the sum of results for all elements analyzed
grain size test results obtained.
and 100 %.
6.3 For those copper alloys in which zinc is specified as the
10. Performance Requirements
remainder, either copper or zinc may be taken as the difference
10.1 Bending Requirements:
between the sum of all elements analyzed and 100 %. When
10.1.1 Wire of tempers H04 (hard), H08 (spring) and H14
copper is so determined, that difference value shall conform to
(extra spring) in sizes up to 0.250 in. [6 mm] inclusive, shall
the requirements given in Table 1.
withstand being bent cold through an angle of 120° on a radius
6.4 When all elements listed in Table 1 for the Copper Alloy
equal to the diameter or distance between parallel surfaces of
UNS No. pre
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