ASTM B122/B122M-20

Standard Specification for Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled Bar

ABSTRACT
This specification establishes the requirements for copper-nickel-tin, copper-nickel-zinc, and copper-nickel alloy plates, sheets, strips, and rolled bars made from UNS C70600, C70620, C71000, C71500, C71520, C72200, C72500, C73500, C74000, C74500, C75200, C76200, or C77000 alloy. Each product should be manufactured by hot or cold working, and annealed if required, to produce a uniform wrought structure that meets the specified temper properties. This specification also contains information on the standard tempers for and tensile strengths of hot-rolled, cold-rolled, and annealed tempers. In case of disagreements, the chemical composition is determined following appropriate methods listed here. Grain size is the standard requirement for all products in the annealed tempers.
SCOPE
1.1 This specification establishes the requirements for copper-nickel-tin alloy, copper-nickel-zinc alloy (nickel silver), and copper-nickel alloy plate, sheet, strip, and rolled bar. The following alloys are covered:    
Nominal Composition, %    
Copper Alloy  
Previously Used  
Chro-  
UNS No.2  
Designation  
Copper  
Nickel  
Zinc  
Tin  
mium  
C70600  
...  
90  
10  
...  
...  
...  
C70620  
...  
90  
10  
...  
...  
...  
C71000  
6  
80  
20  
...  
...  
...  
C71500  
5  
70  
30  
...  
...  
...  
C71520  
...  
70  
30  
...  
...  
...  
C72200  
...  
85  
15  
...  
...  
0.5  
C72500  
...  
89  
9  
...  
2  
...  
C73500  
1  
72  
18  
10  
...  
...  
C74000  
9  
70  
10  
20  
...  
...  
C74500  
3  
65  
10  
25  
...  
...  
C75200  
2  
65  
18  
17  
...  
...  
C76200  
8  
59  
12  
29  
...  
...  
C77000  
4  
55  
18  
27  
...  
...
Note 1: Plates of copper-nickel alloy Copper Alloy UNS Nos. C70600, C70620, C71500, C71520, and C72200 for use as tube plates in surface condensers and heat exchangers are covered by Specification B171/B171M.  
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 are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.3 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.

General Information

• Status: Published
• Publication Date: 30-Sep-2020
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.01 - Plate, Sheet, and Strip

Standards Content (Sample)

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.
Designation:B122/B122M −20
Standard Specification for
Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel
Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and
1
Rolled Bar
This standard is issued under the fixed designation B122/B122M; 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* 1.3 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 This specification establishes the requirements for
ization established in the Decision on Principles for the
copper-nickel-tin alloy, copper-nickel-zinc alloy (nickel
Development of International Standards, Guides and Recom-
silver), and copper-nickel alloy plate, sheet, strip, and rolled
mendations issued by the World Trade Organization Technical
bar. The following alloys are covered:
Barriers to Trade (TBT) Committee.
Nominal Composition, %
Previously
2. Referenced Documents
Copper Alloy Used Chro-
2
UNS No. Designation Copper Nickel Zinc Tin mium 3
2.1 ASTM Standards:
B171/B171M Specification for Copper-Alloy Plate and
C70600 . 90 10 . . .
C70620 . 90 10 . . .
Sheet for Pressure Vessels, Condensers, and Heat Ex-
C71000 6 80 20 . . .
changers
C71500 5 70 30 . . .
B248 Specification for General Requirements for Wrought
C71520 . 70 30 . . .
C72200 . 85 15 . . 0.5
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
C72500 . 89 9 . 2 .
Bar
C73500 1 72 18 10 . .
B248M SpecificationforGeneralRequirementsforWrought
C74000 9 70 10 20 . .
C74500 3 65 10 25 . .
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
C75200 2 65 18 17 . .
Bar (Metric)
C76200 8 59 12 29 . .
B601 Classification forTemper Designations for Copper and
C77000 4 55 18 27 . .
Copper Alloys—Wrought and Cast
NOTE 1—Plates of copper-nickel alloy Copper Alloy UNS Nos.
B846 Terminology for Copper and Copper Alloys
C70600, C70620, C71500, C71520, and C72200 for use as tube plates in
surface condensers and heat exchangers are covered by Specification E8/E8M Test Methods for Tension Testing of Metallic Ma-
B171/B171M.
terials
E112 Test Methods for Determining Average Grain Size
1.2 Units—The values stated in either inch-pound units or
E255 Practice for Sampling Copper and Copper Alloys for
SI units are to be regarded separately as standard. Within the
the Determination of Chemical Composition
text, SI units are shown in brackets. The values stated in each
E478 Test Methods for ChemicalAnalysis of CopperAlloys
system are not necessarily exact equivalents; therefore, to
E527 Practice for Numbering Metals and Alloys in the
ensure conformance with the standard, each system shall be
Unified Numbering System (UNS)
used independently of the other, and values from the two
systems shall not be combined.
3. General Requirements
3.1 The following sections of Specification B248 or Speci-
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
fication B248M constitute a part of this specification:
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.01onPlate,
3.1.1 Terminology
Sheet, and Strip.
3.1.2 Materials and Manufacture
Current edition approved Oct. 1, 2020. Published October 2020. Originally
approved in 1939. Last previous edition approved in 2016 as B122/B122M – 16.
DOI: 10.1520/B0122_B0122M-20.
2 3
The UNS system for copper and copper alloys (see Practice E527) is a simple For referenced ASTM standards, visit the ASTM website, www.astm.org, or
expansion of the former standard designation system accomplished by the addition contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
of a prefix “C” and a suffix “00.” The suffix can be used to accommodate Standards volume information, refer to the standard’s Document Summary page on
composition variations of the base alloy. 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
1

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B122/B122M−20
3.1.3 Workmanship, Finish, and Appearance 5.2 The following options are available but may not be
3.1.4 Sampling—except for chemical analysis included unless specified at the time of placing of the order,
3.1.5 Number of Tests and Retests when required
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B122/B122M − 16 B122/B122M − 20
Standard Specification for
Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel
Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and
1
Rolled Bar
This standard is issued under the fixed designation B122/B122M; 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 establishes the requirements for copper-nickel-tin alloy, copper-nickel-zinc alloy (nickel silver), and
copper-nickel alloy plate, sheet, strip, and rolled bar. The following alloys are covered:
Nominal Composition, %
Previously
Copper Alloy Used Chro-
2
UNS No. Designation Copper Nickel Zinc Tin mium
C70600 . 90 10 . . .
C70620 . 90 10 . . .
C71000 6 80 20 . . .
C71500 5 70 30 . . .
C71520 . 70 30 . . .
C72200 . 85 15 . . 0.5
C72500 . 89 9 . 2 .
C73500 1 72 18 10 . .
C74000 9 70 10 20 . .
C74500 3 65 10 25 . .
C75200 2 65 18 17 . .
C76200 8 59 12 29 . .
C77000 4 55 18 27 . .
NOTE 1—Plates of copper-nickel alloy Copper Alloy UNS Nos. C70600, C70620, C71500, C71520, and C72200 for use as tube plates in surface
condensers and heat exchangers are covered by Specification B171/B171M.
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 non-conformance with the standard.shall not be combined.
1.3 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
This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.01 on Plate,
Sheet, and Strip.
Current edition approved April 1, 2016Oct. 1, 2020. Published April 2016October 2020. Originally approved in 1939. Last previous edition approved in 20112016 as
B122/B122M – 11.B122/B122M – 16. DOI: 10.1520/B0122_B0122M-16.10.1520/B0122_B0122M-20.
2
The UNS system for copper and copper alloys (see Practice E527) is a simple expansion of the former standard designation system accomplished by the addition of a
prefix “C” and a suffix “00.” The suffix can be used to accommodate composition variations of the base alloy.
*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

---------------------- Page: 1 ----------------------
B122/B122M − 20
2. Referenced Documents
3
2.1 ASTM Standards:
B171/B171M Specification for Copper-Alloy Plate and Sheet for Pressure Vessels, Condensers, and Heat Exchangers
B248 Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
B248M Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
(Metric)
B601 Classification for Temper Designations for Copper and Copper Alloys—Wrought and Cast
B846 Terminology for Copper and Copper Alloys
E8/E8M Test Methods for Tension Testing of Metallic Materials
E112 Test Methods for Determining Average Grain Size
E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E478 Test Methods for Chemical Analysis of Copper Alloys
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
3. General Requirements
3.1 The following sections of SpecificationsSpecification B248 or Specification B248M constitute a part of this specification:
3.1.1 Terminology
3.1.2 Materials and Manufacture
3.1.3 Workmanship, Finish, and Appearance
3.1.4 Sampling—except for chemical analysis
3.1.5 Number of Tests and Retests
3.1.6 Specimen Preparation
3.1.7 Test Methods
3.1.8 Significance of
...