ASTM B196-B 196M-24 铜铍合金条及棒

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Designation: B196/B196M −24
Standard Speciﬁcation for
Copper-Beryllium Alloy Rod and Bar
1
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 U.S. Department of Defense.
1. Scope*
1.1 This speciﬁcation covers the requirements for Copper
Alloy UNS Nos. C17000. C17200, and C17300 rod and bar in
straight lengths.
1.2 Unless otherwise speciﬁed in the contract or purchase
order, Copper Alloy UNS No. C17200 shall be the alloy
furnished.
1.3 The values stated in either inch-pounds or SI units are to
be regarded separately as 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 The following safety hazard caveat pertains only to the
test methods described in this speciﬁcation. 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, health, and environ-
mental practices and determine the applicability of regulatory
limitations prior to use.
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
2
B194 Speciﬁcation for Copper-Beryllium Alloy Plate, Sheet,
Strip, and Rolled Bar
B249/B249M Speciﬁcation for General Requirements for
Wrought Copper and Copper-Alloy Rod, Bar, Shapes and
Forgings
B601 Classiﬁcation for Temper Designations for Copper and
Copper Alloys—Wrought and Cast
B846 Terminology for Copper and Copper Alloys
B950 Guide for Editorial Procedures and Form of Product
Speciﬁcations for Copper and Copper Alloys
E8/E8M Test Methods for Tension Testing of Metallic Ma-
terials
E18 Test Methods for Rockwell Hardness of Metallic Ma-
terials
3. Terminology
3.1 For terms related to copper and copper alloys, refer to
Terminology B846.
4. General Requirements
4.1 The following sections of Speciﬁcation B249/B249M
constitute a part of this speciﬁcation:
4.1.1 Terminology
4.1.2 Dimensions and Permissible Variations
4.1.3 Workmanship, Finish, and Appearance
4.1.4 Sampling
4.1.5 Number of Tests and Retests
4.1.6 Specimen Preparation
4.1.7 Test Methods
4.1.8 Signiﬁcance of Numerical Limits
4.1.9 Inspection
4.1.10 Rejection and Rehearing
4.1.11 Certiﬁcation
4.1.12 Mill Test Report
4.1.13 Packaging and Package Marking
4.2 In addition, when a section with a title identical to that
referenced in 4.1 above appears in this speciﬁcation, it contains
additional requirements which supplement those appearing in
Speciﬁcation B249/B249M.
5. Ordering Information
5.1 Include the following speciﬁed choices when placing
orders for product under this speciﬁcation, as applicable:
5.1.1 ASTM designation and year of issue,
1
This speciﬁcation is under the jurisdiction of ASTM Committee B05 on Copper
and Copper Alloys and is the direct responsibility of Subcommittee B05.02 on Rod,
Bar, Wire, Shapes and Forgings.
Current edition approved July 1, 2024. Published July 2024. Originally approved
in 1945 to replace portions of B120 – 41 T. Last previous edition approved in 2018
as B196/B196M – 18. DOI: 10.1520/B0196_B0196M-24.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at www.astm.org/contact. For Annual Book of
ASTM Standards volume information, refer to the standard’s Document Summary
page on the ASTM website.
*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
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
1

5.1.2 Copper Alloy UNS No. designation,
5.1.3 Temper (Section 8),
5.1.4 Dimensions (diameter or distance between parallel
surfaces, and length),
5.1.5 Form of product (cross section such as round,
hexagonal, octagonal, rectangular, or square),
5.1.6 How furnished (stock or speciﬁc lengths, with or
without ends), and
5.1.7 Quantity: total weight, or total length, or number of
pieces for each form, temper, size, and alloy.
5.2 The following options are available and, when required,
shall be speciﬁed at the time of placing the order:
5.2.1 Heat identiﬁcation or traceability details,
5.2.2 Tensile test (9.1),
5.2.3 Type of edge (square corners, rounded corners,
rounded edge, full-rounded edge),
5.2.4 Certiﬁcation, and
5.2.5 Test Report.
5.2.6 If product is purchased for agencies of the U.S.
government see the Supplementary Requirements section of
Speciﬁcation B249/B249M for additional requirements, if
speciﬁed.
6. Materials and Manufacture
6.1 Material:
6.1.1 The material of manufacture shall be cast billet of
Copper Alloy UNS No. C17000, C17200, or C17300 of such
purity and soundness as to be suitable for processing into the
products prescribed herein.
6.1.2 When speciﬁed in the contract or purchase order that
heat identiﬁcation or traceability is required, the purchaser
shall specify the details required.
NOTE 1—Due to the discontinuous nature of the processing of castings
into wrought products, it is not always practical to identify a speciﬁc
casting analysis with a speciﬁc quantity of ﬁnished material.
6.2 Manufacture:
6.2.1 The product shall be manufactured by such hot
working, cold working, and thermal processing as to produce a
uniform wrought structure in the ﬁnished material.
6.2.2 The product shall be hot or cold worked to the ﬁnished
size, and subsequently annealed and precipitation hardened
when required to meet the temper properties speciﬁed.
6.3 Rod and Bar Ends:
6.3.1 Sawed ends shall be furnished unless otherwise speci-
ﬁed in the contract or purchase order.
7. Chemical Composition
7.1 The material shall conform to the chemical composition
requirements in Table 1 for the Copper Alloy UNS No.
designation speciﬁed in the ordering information.
7.1.1 Results of analysis on a check sample shall conform to
the composition requirements within the permitted analytical
variance speciﬁed in Table 1.
7.2 These composition limits do not preclude the presence
of other elements. By agreement between the manufacturer and
purchaser, limits may be established and analysis required for
unnamed elements.
7.3 For alloys in which copper is listed as “remainder,”
copper is the difference between the sum of results of all
elements determined and 100 %. When all the elements in
Table 1 are determined, the sum of results shall be 99.5 % min.
8. Temper
8.1 The standard tempers for products described in this
speciﬁcation are given in Table 2 and Table 3.
8.2 Designations available under this speciﬁcation are as
speciﬁed in Classiﬁcation B601.
9. Precipitation Heat Treatment
9.1 The precipitation heat treatment is performed on TB00
(A) and TD04 (H) tempers by the purchaser, after machining or
forming.
9.2 Conformance to the TF00 (AT) and TH04 (HT) speci-
ﬁcation limits shown in Table 3, for products supplied in the
TB00 (A) or the TD04 (H) tempers, shall be determined by
testing specimens heat treated at a uniform temperature of
600 °F to 675 °F [316 °C to 357 °C] for the times shown in
Table 4.
TABLE 1 Chemical Requirements
Element
Composition,%
Copper Alloy UNS No.
C17000 C17200 C17300
Beryllium 1.60–1.85 1.80–2.00 1.80–2.00
Nickel + cobalt, min 0.20 0.20 0.20
Nickel + cobalt
+ iron, max
0.6 0.6 0.6
Aluminum, max 0.20 0.20 0.20
Silicon, max 0.20 0.20 0.20
Lead ... ... 0.20–0.6
Copper remainder remainder remainder
TABLE 2 Solution Heat-Treated and Solution Heat-Treated and Cold-Worked Mechanical Property Requirements
Temper Designation
Diameter or Maximum
Distance Between
Parallel Surfaces
Tensile
Strength,
Tensile
Strength, Yield Strength, min
Rockwell
Hardness,
Elongation in
4 × D,
A
Code Name in. mm ksi MPa 0.2 % offset, ksi MPa B Scale min, %
TB00 Solution heat treated (A) all sizes all sizes 60–85 410–590 20 140 45–85 20
TD04 Hard (H) up to
3
⁄
8
, incl. up to 10 90–130 620–900 75 520 88–103 8
over
3
⁄
8
to 1 incl. over 10 to 25 incl. 90–125 620–860 75 520 88–102 8
over 1 to 3, incl. over 25 to 75 85–120 590–830 75 520 88–101 8
A
4 × D= 4 × diameter.
B196/B196M − 24
2

TABLE 3 Precipitation Heat-Treated Mechanical Property Requirements

Temper Designation

Diameter or Maximum Distance

Between Parallel Surfaces

Copper Alloy UNS No.

Elongation

in 4 × D,

min, %

C17000 C17200 and C17300

Code Name Tensile

Strength,

ksi

Tensile

Strength

MPa

Yield Strength,

min, 0.2 %

offset, ksi

Rockwell

Hardness,

C Scale

Tensile

Strength,

ksi

Yield Strength,

min, 0.2 %

offset, ksi

Rockwell

Hardness,

C Scale

in. mm MPa MPa MPa

TF00 Precipitation

Hardened

(AT)

up to 3, incl. up to 76.2 150–190

1030–1310

125 860 32–39 165–200

1140–1380

145 1000 36–42 4

over 3 over 76.2 150–190

1030–1310

125 860 32–39 165–200

1140–1380

130 900 36–42 3

TH04 Hard and

Precipitation

Heat Treated

(HT)

up to

⁄

, incl. up to 10 170–210

1210–1450

145 1000 35–41 185–225

1280–1550

160 1100 39–45 2

over

⁄

to 1, incl. over 10 to 25.4, incl. 170–210

1170–1450

145 1000 35–41 180–220

1240–1520

155 1070 38–44 2

over 1 to 3, incl. over 25.4 to 76.2, incl. 165–200

1140–1380

135 930 34–39 175–215

1210–1480

145 1000 37–44 4

These values apply to standard qualiﬁcation heat treatment; see Section 9.

4 × D= 4 × diameter.

The upper limits in the tensile strength and hardness columns are for reference only.

B196/B196M − 24

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标签： #铜铍合金条及棒

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ASTM B196-B 196M-2024 Standard Specification for Copper-Beryllium Alloy Rod and Bar 铜铍合金条及棒

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