Standard Specification for Copper-Beryllium Alloy (UNS No. C17000 and C17200) Forgings and Extrusions

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1.1 This specification establishes the requirements for copper-beryllium alloy forgings and extrusions produced from the following alloys.Copper Alloy UNS No. Nominal % Composition BerylliumC170001.7 C172001.9
Note 1—Requirements for copper-beryllium alloy rod and bar appear in Specification B 196/B 196M (Section 2).
1.2 Unless otherwise specified, Copper Alloy UNS No. C17200 shall be the alloy furnished whenever Specification B 570 is specified without any alloy designation.
1.3 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units, which are for information only and are not considered standard.
1.4 The following hazard statement pertains only to the test method portions of the specification:
1.4.1 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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ASTM B570-01 - Standard Specification for Copper-Beryllium Alloy (UNS No. C17000 and C17200) Forgings and Extrusions
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 570 – 01
Standard Specification for
Copper-Beryllium Alloy (UNS No. C17000 and C17200)
1
Forgings and Extrusions
This standard is issued under the fixed designation B 570; 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.
2
1. Scope * B 846 Terminology for Copper and Copper Alloys
3
E 8 Test Methods forTensionTesting of Metallic Materials
1.1 This specification establishes the requirements for
E 18 Test Methods for Rockwell Hardness and Rockwell
copper-beryllium alloy forgings and extrusions produced from
3
Superficial Hardness of Metallic Materials
the following alloys.
3
E 112 Test Methods for Determining Average Grain Size
Nominal % Composition
Copper Alloy UNS No. Beryllium
3. General Requirements
C17000 1.7
3.1 The following sections of Specification B 249/B 249M
C17200 1.9
form a part of this specification.
NOTE 1—Requirements for copper-beryllium alloy rod and bar appear
3.1.1 Terminology,
in Specification B 196/B 196M (Section 2).
3.1.2 Materials and Manufacture,
1.2 Unless otherwise specified, Copper Alloy UNS No.
3.1.3 Sampling,
C17200 shall be the alloy furnished whenever Specification
3.1.4 Number of Tests and Retests,
B 570 is specified without any alloy designation.
3.1.5 Sample Preparation,
1.3 Units—The values stated in inch-pound units are to be
3.1.6 Test Methods,
regarded as standard. The values given in parentheses are
3.1.7 Significance of Numerical Limits,
mathematical conversions to SI units, which are for informa-
3.1.8 Inspection,
tion only and are not considered standard.
3.1.9 Rejection and Rehearing,
1.4 The following hazard statement pertains only to the test
3.1.10 Certification,
method portions of the specification:
3.1.11 Mill Test Report,
1.4.1 This standard does not purport to address all of the
3.1.12 Packaging, Marking, Shipping and Preservation.
safety concerns, if any, associated with its use. It is the
3.2 In addition, when a section with a title identical to that
responsibility of the user of this standard to establish appro-
referenced in 3.1, appears in this specification, it contains
priate safety and health practices and determine the applica-
additional requirements that supplement those appearing in
bility of regulatory limitations prior to use.
Specification B 249/B 249M.
2. Referenced Documents
4. Terminology
2.1 ASTM Standards:
4.1 Definitions:
B 194 Specification for Copper-Beryllium Alloy Plate,
4.1.1 For definitions of terms related to copper and copper
2
Sheet, Strip, and Rolled Bar
alloys, refer to Terminology B 846.
B 196/B 196M Specification for Copper-Beryllium Alloy
4.1.2 extrusion, n—a uniform metal shape, long in relation
2
Rod and Bar
to its cross-sectional dimensions, produced by forcing a suit-
B 249/B 249M Specification for General Requirements for
ably preheated billet or preformed piece through an orifice
Wrought Copper and Copper-Alloy Rod, Bar, Shapes and
(die) of the desired cross section.
2
Forgings
4.1.3 forging, n—a metal part worked to a predetermined
B 601 Classification for Temper Designations for Copper
shape by one or more such processes as hammering, upsetting,
2
and Copper Alloys—Wrought and Cast
pressing, rolling, and so forth.
5. Ordering Information
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
5.1 Include the following information in orders for prod-
and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod,
ucts:
Bar, Wire, Shapes, and Forgings.
Current edition approved Oct. 10, 2001. Published January 2002. Originally
published as B 570 – 72. Last previous edition B 570 – 96.
2 3
Annual Book of ASTM Standards, Vol 02.01. Annual Book of ASTM Standards, Vol 03.01.
*A Summary 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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B 570
5.1.1 ASTM designation and year of issue, 9. Grain Size
5.1.2 Quantity: number of pieces or pounds,
9.1 The grain size, if required, shall be as agreed upon
5.1.3 Copper Alloy UNS No. (Section 1),
between the purchaser and the manufacturer and shall be
5.1.4 Temper (Section 8) or condition (Section 12),
determined in accordance with Test Methods E 112.
5.1.5 Drawing showing the shape, dimensions, and toler-
ances, if required,
10. Physical Property Requirements
5.1.6 If an extrusion: the length (or mass) required, straight-
10.1 Microstructure:
ness as required,
10.1.1 The product in the TF00 (precipitation-hardened
5.2 The following are options and should be included in the
(A
...

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