ASTM B196/B196M-07(2013)
(Specification)Standard Specification for Copper-Beryllium Alloy Rod and Bar
Standard Specification for Copper-Beryllium Alloy Rod and Bar
ABSTRACT
This specification establishes the requirements for rods and bars in straight lengths of copper-beryllium alloys with Copper Alloy UNS Nos. C17000, C17200, and C17300. The material for manufacture shall be cast and worked to such purity and soundness as to be suitable for processing by hot working, cold working, and annealing to produce a uniform wrought structure and specified temper in the finished product. Products shall be available in the following tempers: solution heat-treated TB00 (A), and cold-drawn hard TD04 (H), which shall be precipitation heat treated after machining or forming. Products that are already precipitation heat treated by the manufacturer shall be available in tempers TF00 (AT) and TH04 (HT). Products shall be sampled and prepared, then tested accordingly to examine their conformance to dimensional (diameter, length, straightness, and edge contour), mechanical (tensile and yield strength, Rockwell hardness, and elongation), and chemical composition requirements.
SCOPE
1.1 This specification establishes the requirements for copper-beryllium alloy rod and bar in straight lengths. The following three alloys are included:
Copper Alloy
UNS No.
Previously Used
Designations
Nominal Beryllium
Content, %
C17000
Alloy 165
1.7
C17200
Alloy 25
1.9
C17300
1.9
+0.4 lead
1.2 Unless otherwise required, Copper Alloy UNS No. C17200 shall be the alloy furnished whenever Specification B196/B196Mis specified without any alloy designation.
1.3 The values stated in either inch-pounds or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be 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.
1.4 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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Standards Content (Sample)
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Designation:B196/B196M −07(Reapproved 2013)
Standard Specification for
Copper-Beryllium Alloy Rod and Bar
This standard is issued under the fixed designation B196/B196M; 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 (´) 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* Strip, and Rolled Bar
B249/B249M Specification for General Requirements for
1.1 This specification establishes the requirements for
Wrought Copper and Copper-Alloy Rod, Bar, Shapes and
copper-beryllium alloy rod and bar in straight lengths. The
Forgings
following three alloys are included:
B601 Classification forTemper Designations for Copper and
Copper Alloy Previously Used Nominal Beryllium
Copper Alloys—Wrought and Cast
UNS No. Designations Content, %
B846 Terminology for Copper and Copper Alloys
C17000 Alloy 165 1.7
E8 Test Methods for Tension Testing of Metallic Materials
C17200 Alloy 25 1.9
E8M Test Methods forTensionTesting of Metallic Materials
C17300 1.9
+0.4 lead [Metric] (Withdrawn 2008)
1.2 Unless otherwise required, Copper Alloy UNS No.
3. General Requirements
C17200 shall be the alloy furnished whenever Specification
3.1 The following sections of Specification B249/B249M
B196/B196Mis specified without any alloy designation.
constitute a part of this specification:
1.3 The values stated in either inch-pounds or SI units are to
3.1.1 Terminology;
be regarded separately as the standard. Within the text, the SI
3.1.2 Dimensions and Permissible Variations;
units are shown in brackets. The values stated in each system
3.1.3 Workmanship, Finish, and Appearance;
may not be exact equivalents; therefore, each system shall be
3.1.4 Sampling;
used independently of the other. Combining values from the
3.1.5 Number of Tests and Retests;
two systems may result in nonconformance with the specifi-
3.1.6 Specimen Preparation;
cation.
3.1.7 Test Methods;
1.4 This standard does not purport to address all of the
3.1.8 Significance of Numerical Limits;
safety concerns, if any, associated with its use. It is the
3.1.9 Inspection;
responsibility of the user of this standard to establish appro-
3.1.10 Rejection and Rehearing;
priate safety and health practices and determine the applica-
3.1.11 Certification;
bility of regulatory limitations prior to use.
3.1.12 Mill Test Report;
3.1.13 Packaging and Package Marking; and
2. Referenced Documents
3.1.14 Heat Identification
2.1 The following documents in the current issue of the
3.2 In addition, when a section with a title identical to that
BookofStandardsformapartofthisspecificationtotheextent
referencedin3.1aboveappearsinthisspecification,itcontains
referenced herein:
additional requirements which supplement those appearing in
2.2 ASTM Standards:
Specification B249/B249M.
B194 Specification for Copper-BerylliumAlloy Plate, Sheet,
4. Terminology
4.1 For terms related to copper and copper alloys, refer to
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
Terminology B846.
and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod,
Bar, Wire, Shapes and Forgings.
4.2 Definitions of Terms Specific to This Standard:
Current edition approved April 1, 2013. Published April 2013. Originally
4.2.1 Heat—A heat shall be the result of castings poured
approvedin1945toreplaceportionsofB120 – 41 T.Lastpreviouseditionapproved
simultaneously from the same source of molten metal.
in 2007 as B196/B196M – 07. DOI: 10.1520/B0196_B0196M-07R13.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
*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
B196/B196M−07 (2013)
4.2.2 Lot—The lot shall be a heat or fraction thereof. 7.2 These composition limits do not preclude the presence
of other elements. Limits for unnamed elements may be
5. Ordering Information established and analysis required by agreement between the
manufacturer, or supplier, and purchaser.
5.1 Orders for products should include the following
information, as applicable: 7.3 Copper is customarily given as remainder, but may be
5.1.1 ASTM specification designation and year of issue, taken as the difference between the sum of all elements
5.1.2 Quantity, analyzed and 100 %.
5.1.3 Copper Alloy UNS No. designation (Section 1),
7.4 When all the elements in Table 1 are determined, the
5.1.4 Form of material (rod or bar and cross section, such as
sum of results shall be 99.5 % min.
round, hexagonal, and so forth),
5.1.5 Temper (Section 8),
8. Temper
5.1.6 Dimensions (diameter or distance between parallel
8.1 The standard temper designations available under this
surfaces, and length),
specification and as specified in Practice B601 are solution
5.1.7 How furnished (stock or specific lengths, with or
heat-treated TB00 (A), and cold-drawn hard TD04 (H), (see
without ends), and
Table 2) to be precipitation heat treated by the user. Also
5.1.8 When material is ordered for agencies of the U.S.
available are products already precipitation heat treated by the
government (See Section 11).
manufacturer, tempers TF00 (AT) and TH04 (HT). These
5.2 The following options are available and should be
products meet property requirements in Table 3 and normally
specified in the contract or purchase order when required:
require no further heat treatment by the user.
5.2.1 Type of edge (square corners, rounded corners,
rounded edge, full-rounded edge),
9. Precipitation Heat Treatment
5.2.2 Mechanical properties (tension test and hardness)
9.1 The precipitation heat treatment is performed on TB00
(Section 10),
(A)andTD04(H)tempersbythepurchaser,aftermachiningor
5.2.3 Certification, and
forming.
5.2.4 Mill Test Report.
9.2 Conformance to the TF00 (AT) and TH04 (HT) speci-
fication limits shown in Table 3, for products supplied in the
6. Materials and Manufacture
TB00 (A) or the TD04 (H) tempers, shall be determined by
6.1 Material:
testing test specimens heat treated at a uniform temperature of
6.1.1 The material of manufacture shall be Copper Alloy
600 to 675°F (316 to 357°C) for the times shown in Table 4.
UNS No. C17000, C17200, or C17300, cast and worked and of
9.3 End products may be heat treated at other times and
such purity and soundness as to be suitable for processing into
temperatures for specific applications. These special combina-
the products prescribed herein.
tions of properties such as increased ductility, electrical
6.1.2 Heat traceability shall be maintained and reported on
conductivity, dimensional accuracy, endurance life, and resis-
the Mill Test Report or Certification.
tance to elastic drift and hysteresis in springs, may be obtained
6.2 Manufacture:
by special precipitation-hardening heat treatments. The me-
6.2.1 The product shall be produced with a combination hot
chanical requirements of Table 3 do not apply to such special
working, cold working, and thermal processing to produce a
heat treatments. Specific test requirements as needed shall be
uniform wrought structure and the specified temper.
agreed upon between the manufacturer or supplier and pur-
chaser of the end product.
7. Chemical Composition
9.4 TF00 (AT) and TH04 (HT) tempers as standard mill-
7.1 The material shall conform to the chemical composition
hardened products have been precipitation heat treated and
requirements prescribed in Table 1 for CopperAlloy UNS No.
testedbythemanufacturerforconformancetothespecification
designation specified in the ordering information.
limits shown in Table 3. Further thermal treatments of these
tempers are not normally required.
10. Mechanical Property Requirements
TABLE 1 Chemical Requirements
10.1 Tensile Test Requirements:
Composition,%
10.1.1 Thetensiontest,inaccordancewithTestMethodsE8
Element Copper Alloy UNS No.
or E8M, shall be the standard test for rod (round, hexagonal,
C17000 C17200 C17300
and octagonal) and bar (square) having a nominal diameter or
Beryllium 1.60–1.85 1.80–2.00 1.80–2.00
distance between parallel surfaces up to ⁄8 in. [10 mm] incl,
Nickel + cobalt, min 0.20 0.20 0.20
Nickel + cobalt 0.6 0.6 0.6
and other shapes having a nominal cross-sectional area up to
+ iron, max 2 2
...
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