ASTM B151/B151M-20

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Designation: B151/B151M − 13 B151/B151M − 20
Standard Specification for
Copper-Nickel-Zinc Alloy (Nickel Silver) and Copper-Nickel
Rod and Bar
This standard is issued under the fixed designation B151/B151M; 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.
1. Scope*
1.1 This specification establishes the requirements for copper-nickel-zinc and copper-nickel rod and bar for general application
produced from Copper Alloy UNS Nos. C70600, C70620, C71500, C71520, C74500, C75200, C75700, C76400, C77000, and
C79200.
1.1.1 Copper Alloys UNS Nos. C70620 and C71520 are for product intended for welding applications.
1.1.2 Units—The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text,
SI units are shown in brackets. The values stated in each system mayare not benecessarily exact equivalents; therefore, to ensure
conformance with the standard, each system shall be used independently of the other. Combiningother, and values from the two
systems may result in nonconformance with the standard.shall not be combined.
NOTE 1—Requirements for copper-nickel-zinc alloy wire appear in Specification B206/B206M.
1.2 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.
2. Referenced Documents
2.1 ASTM Standards:
B206/B206M Specification for Copper-Nickel-Zinc (Nickel Silver) Wire and Copper-Nickel Alloy Wire
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
E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys (Withdrawn 2010)
E76 Test Methods for Chemical Analysis of Nickel-Copper Alloys (Withdrawn 2003)
E478 Test Methods for Chemical Analysis of Copper Alloys
3. General Requirements
3.1 The following sections of Specification B249/B249M constitute a part of this specification:
3.1.1 Terminology,Terminology;
3.1.2 Material and Manufacture,Manufacture;
3.1.3 Workmanship, Finish, and Appearance,Appearance;
3.1.4 Sampling,Sampling;
3.1.5 Number of Tests and Retests,Retests;
3.1.6 Specimen Preparation,Preparation;
3.1.7 Test Methods,Methods;
3.1.8 Significance of Numerical Limits,Limits;
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 Oct. 1, 2013April 1, 2020. Published November 2013April 2020. Originally approved in 1941. Last previous edition approved in 20112013 as
B151/B151M – 05 (2011).B151/B151M–13. DOI: 10.1520/B0151_B0151M-13.10.1520/B0151_B0151M–20.
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’sstandard’s Document Summary page on the ASTM website.
The last approved version of this historical standard is referenced on 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
B151/B151M − 20
3.1.9 Inspection,Inspection;
3.1.10 Rejection and Rehearing,Rehearing;
3.1.11 Certification,Certification;
3.1.12 Report,Report;
3.1.13 Packaging and Package Marking,Marking; and
3.1.14 Supplementary Requirements.
3.2 In addition, when a section with a title identical to that referenced in 3.1, above, appears in this specification, it contains
additional requirements which supplement those appearing in SpecificationsSpecification B249/B249M.
4. Terminology
4.1 For definitions of terms related to copper and copper alloys, refer to Terminology B846.
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 (for example, issue;B151/B151M – XX),
5.1.2 Copper Alloy UNS No. designation (Section 1),);
5.1.3 Temper (Section 8 and Tables 2-6),);
5.1.4 Form: cross section such as round, hexagonal, square, and so forth (Section 1211),);
5.1.5 Diameter or distance between parallel surfaces, length (Section 1211),);
5.1.6 Weight: total for each form, size, and temper,temper; and
5.1.7 Intended application.
5.2 The following options are available but may not be included unless specified at the time of placing of the order when
required:
5.2.1 Heat identification or traceability details (Section 4.1 (4.1 of Specification B249/B249M),
5.2.2 Certification (Section 15 of Specification B249/B249M),
5.2.3 Test report (Section 16 of Specification B249/B249M), and
5.2.4 When material is purchased for agencies of the U.S. Government (Section 11).
6. Materials and Manufacture
6.1 Material:
6.1.1 The material of manufacture as specified in the contract or purchase order, shall be of one of Copper Alloy UNS Nos.
C70600, C70620, C71500, C71520, C74500, C75200, C75700, C76400, C77000, or C79200.
7. Chemical Composition
7.1 The productmaterial 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 These composition limits do not preclude the presence of other elements. By agreement between the manufacturer and the
purchaser, limits may be established and analysis required for unnamed elements.
7.2 For alloys in which copper is listed as “remainder,” copper is the difference between the sum of results for all elements
determined and 100 %.
7.3 For alloys in which zinc is listed as “remainder,” either copper or zinc may be taken as the difference between the sum of
all elements determined and 100 %.
7.4 When all elements listed in Table 1 for a specified alloy are determined, the sum of results shall be 99.5 % minimum.
TABLE 1 Chemical Requirements
Composition, % max (unless shown as range or min)
Copper Alloy
Copper, Incl Silver Nickel, Incl Cobalt Lead Iron Manganese Zinc Phosphorous Sulfur Carbon
UNS No.
C70600 remainder 9.0-11.0 0.05 1.0-1.8 1.0 1.0 . . . . . . . . .
C70620 86.5 min 9.0-11.0 0.02 1.0-1.8 1.0 0.50 0.02 0.02 0.05
C71500 remainder 29.0-33.0 0.05 0.40-1.0 1.0 1.0 . . . . . . . . .
C71520 65.0 min 29.0-33.0 0.02 0.40-1.0 1.0 0.50 0.02 0.02 0.05
C74500 63.5-66.5 9.0-11.0 0.05 0.25 0.50 remainder . . . . . . . . .
C75200 63.0-66.5 16.5-19.5 0.05 0.25 0.50 remainder . . . . . . . . .
C75700 63.5-66.5 11.0-13.0 0.05 0.25 0.50 remainder . . . . . . . . .
C76400 58.5-61.5 16.5-19.5 0.05 0.25 0.50 remainder . . . . . . . . .
C77000 53.5-56.5 16.5-19.5 0.05 0.25 0.50 remainder . . . . . . . . .
C79200 59.0-66.5 11.0-13.0 0.8-1.4 0.25 0.50 remainder . . . . . . . . .
B151/B151M − 20
TABLE 2 Grain Size Requirements for OS (Annealed) Temper
Rod and Bar
Temper Grain Size, mm
Copper Alloy UNS No.
Designation Nominal Minimum Maximum
All alloys OS015 0.015 . . . 0.030
All alloys OS035 0.035 0.025 0.050
C74500, C75200, C75700, OS070 0.070 0.050 0.100
C76400, and C77000
TABLE 3 Tensile Requirements for Copper-Nickel-Zinc Alloy Rod
and Bar (Inch-Pound Units)
NOTE 1—SI values are stated in Table 4.
Tensile Strength, ksi
Copper Alloy UNS
Temper Diameter or Distance Copper Alloy UNS
Nos. C74500,
Designa- Between Parallel Nos. C75200 and
C75700, C76400,
tion Surfaces, in. C79200
and C77000
Min Max Min Max
Rod:
round
H01 0.02 to 0.50, incl 60 80 75 95
Rod:
round, hexagonal,
octagonal
H04 0.02 to 0.25, incl 80 100 90 110
Over 0.25 to 0.50, incl 70 90 80 100
Over 0.50 to 1.0, incl 65 85 75 95
Over 1.0 60 80 70 90
H04 Bar:
square, rectangular
all sizes 68 88 75 95
TABLE 4 Tensile Requirements for Copper-Nickel-Zinc Alloy Rod
and Bar [SI Units]
NOTE 1—Inch-Pound values are stated in Table 3.
Tensile Strength, MPa
Temper Diameter or Distance Copper Alloy UNS Copper Alloy UNS
Designa- Between Parallel NosNos. C75200 NosNos. C74500,
tion Surfaces, mm and C79200 C75700, C76400
and C77000
Min Max Min Max
Rod:
round
H01 0.5 to 10, incl 415 550 515 655
Rod:
round, hexagonal
octagonal
H04 0.5 to 6.5 incl 550 690 620 760
Over 6.5 to 10, incl 485 620 550 690
Over 10 to 25, incl 450 590 515 655
Over 25 415 550 485 620
H04 Bar:
square, rectangular
all sizes 470 605 515 650
8. Tempe
...