ASTM B570-06(2010)
(Specification)Standard Specification for Copper-Beryllium Alloy (UNS Nos. C17000 and C17200) Forgings and Extrusions
Standard Specification for Copper-Beryllium Alloy (UNS Nos. C17000 and C17200) Forgings and Extrusions
ABSTRACT
This specification establishes the requirements for copper-beryllium alloy (UNS nos. C17000 and C17200) forgings and extrusions. The material of manufacture shall be cast or wrought billet of C17000 or C17200 of such purity and soundness as to be suitable for processing into the products prescribed. The product shall be manufactured by hot working and heat treating as may be necessary to meet the properties specified. The product composition shall conform to the chemical requirements specified. The standard temper designations available under this specification and as prescribed in Classification B 601 are solution heat-treated TB00 (A) and precipitation heat-treated TF00 (AT). The product in the TF00 (precipitation-hardened (AT)) condition shall have a microstructure with a minimum of second phase (beta) constituents. When present, beta shall be fine and well dispersed. The product furnished under this specification shall conform to the prescribed hardness requirements. Tensile properties shall be determined in accordance with test methods E 8.
SCOPE
1.1 This specification establishes the requirements for copper-beryllium alloy forgings and extrusions produced from the following alloys.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:B570 −06(Reapproved 2010)
Standard Specification for
Copper-Beryllium Alloy (UNS Nos. C17000 and C17200)
Forgings and Extrusions
This standard is issued under the fixed designation B570; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* B249/B249MSpecification for General Requirements for
Wrought Copper and Copper-Alloy Rod, Bar, Shapes and
1.1 This specification establishes the requirements for
Forgings
copper-beryllium alloy forgings and extrusions produced from
B601ClassificationforTemperDesignationsforCopperand
the following alloys.
Copper Alloys—Wrought and Cast
Nominal % Composition
B846Terminology for Copper and Copper Alloys
Copper Alloy UNS No. Beryllium
E8Test Methods for Tension Testing of Metallic Materials
C17000 1.7
E18Test Methods for Rockwell Hardness of Metallic Ma-
C17200 1.9
terials
NOTE 1—Requirements for copper-beryllium alloy rod and bar appear
E112Test Methods for Determining Average Grain Size
in Specification B196/B196M (Section 2).
3. General Requirements
1.2 Unless otherwise specified, Copper Alloy UNS No.
C17200 shall be the alloy furnished whenever Specification
3.1 The following sections of Specification B249/B249M
B570 is specified without any alloy designation.
form a part of this specification.
3.1.1 Terminology,
1.3 Thevaluesstatedininch-poundunitsaretoberegarded
3.1.2 Materials and Manufacture,
as standard. The values given in parentheses are mathematical
3.1.3 Sampling,
conversions to SI units that are provided for information only
and are not considered standard. 3.1.4 Number of Tests and Retests,
3.1.5 Sample Preparation,
1.4 The following hazard statement pertains only to the test
3.1.6 Test Methods,
method portions of the specification: This standard does not
3.1.7 Significance of Numerical Limits,
purport to address all of the safety concerns, if any, associated
3.1.8 Inspection,
with its use. It is the responsibility of the user of this standard
3.1.9 Rejection and Rehearing,
to establish appropriate safety and health practices and
3.1.10 Certification,
determine the applicability of regulatory limitations prior to
3.1.11 Mill Test Report,
use.
3.1.12 Packaging, Marking, Shipping and Preservation.
2. Referenced Documents 3.2 In addition, when a section with a title identical to that
referenced in 3.1, appears in this specification, it contains
2.1 ASTM Standards:
additional requirements that supplement those appearing in
B194SpecificationforCopper-BerylliumAlloyPlate,Sheet,
Specification B249/B249M.
Strip, and Rolled Bar
B196/B196MSpecificationforCopper-BerylliumAlloyRod
4. Terminology
and Bar
4.1 Definitions:
4.1.1 For definitions of terms related to copper and copper
1 alloys, refer to Terminology B846.
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.02onRod, 4.1.2 extrusion, n—a uniform metal shape, long in relation
Bar, Wire, Shapes and Forgings.
to its cross-sectional dimensions, produced by forcing a suit-
Current edition approved Oct. 1, 2010. Published December 2010. Originally
ably preheated billet or preformed piece through an orifice
approved in 1972. Last previous edition approved in 2006 as B570–06. DOI:
(die) of the desired cross section.
10.1520/B0570-06R10.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1.3 forging, n—a metal part worked to a predetermined
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
shape by one or more such processes as hammering, upsetting,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. pressing, rolling, and so forth.
*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
B570−06 (2010)
5. Ordering Information 8. Temper
5.1 Include the following information in orders for prod- 8.1 The standard temper designations available under this
specification and as prescribed in Classification B601 are
ucts:
solution heat-treated TB00 (A) and precipitation heat-treated
5.1.1 ASTM designation and year of issue,
TF00 (AT).
5.1.2 Quantity: number of pieces or pounds,
5.1.3 Copper Alloy UNS No. (Section 1),
9. Grain Size
5.1.4 Temper (Section 8) or condition (Section 12),
9.1 The grain size, if required, shall be as agreed upon
5.1.5 Drawing showing the shape, dimensions, and toler-
between the purchaser and the manufacturer and shall be
ances, if required,
determined in accordance with Test Methods E112.
5.1.6 Ifanextrusion:thelength(ormass)required,straight-
ness as required,
10. Physical Property Requirements
5.2 The following are options and should be included in the
10.1 Microstructure:
contract or purchase order, when required:
10.1.1 The product in the TF00 (precipitation-hardened
5.2.1 Tension tests (Section 11),
(AT))conditionshallhaveamicrostructurewithaminimumof
5.2.2 Special tests such as grain size,
second phase (beta) constituents. When present, beta shall be
5.2.3 Finish (see Section 15),
fine and well dispersed.
5.2.4 Grain size (see Section 9), and
11. Mechanical Property Requirements
5.2.5 When material is ordered for agencies of the U.S.
government.
11.1 Hardness—The product furnished under this specifica-
tion shall conform to the hardness requirements prescribed in
6. Material and Manufacture
Table2forthesolutionheat-treatedconditionandTable3after
precipitation heat treatment, unless tensile properties are re-
6.1 Material:
quired by the purchase order. Rockwell hardness shall be
6.1.1 The material of manufacture shall be cast or wrought
determined in accordance with Test Method E18.
billet of C17000 or C17200 of such purity and soundness as to
be suitable for processing into the products prescribed herein.
11.2 Tensile—When specified in the contract or purchase
6.1.2 The product heat number shall appear on the certifi-
order, the tensile properties of the product furnished shall
cation or test report.
conformtothepropertiesinTable2orTable3dependingupon
temper required. Tensile properties shall be determined in
6.2 Manufacture—The product shall be manufactured by
accordance with Test Methods E8.
hot working and heat treating as may be necessary to meet the
properties specified herein.
12. Heat Treatment
12.1 Solution Heat Treatment—Temper TB00 (A)—The
7. Chemical Composition
product shall be heated to a uniform temperature, nominally
7.1 The product composition shall conform to the chemical
1450°F(788°C)andquenchedcommensuratewiththerequired
requirements shown in Table 1.
property and structural integrity of the configuration.
7.2 These composition limits do not preclude the presence
12.2 Precipitation Heat Treatment—Temper TF00 (AT)—
of other elements. Limits may be established and analysis
The product shall be heat treated to a uniform temperature in
required for unnamed elements by agreement between the
the range from 600 to 700°F (316 to 370°C) for a minimum of
manufacturer and the purchaser.
2 to 3 h and then air cooled. This is the heat treatment for the
7.3 Copper, given as remainder, is the difference between acceptance tests shown in Table 3.
the sum of all elements analyzed and 100%. When all the
12.3 Specialcombinationsofpropertiesmaybeobtainedby
elements given in Table 1 are analyzed, the sum of the results
special precipitation heat treatments. The requirements for
shall be 99.5% minimum.
these special heat treatments shall be agreed upon by the
manufacturer or supplier and purchaser.
13. Purchases for the U.S. Government
TABLE 1 Chemical Requirements
13.1 When specified in the contract or purchas
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