ASTM B441-22

Standard Specification for Copper-Cobalt-Beryllium Alloy, Copper-Nickel-Beryllium Alloy, Copper-Nickel-Lead-Beryllium Alloy, and Copper-Nickel-Cobalt Alloy Rod and Bar

ABSTRACT
This specification establishes the requirements for copper-cobalt-beryllium alloy (UNS No. C17500), copper-nickel-beryllium alloy (UNS No. C17510), and copper-nickel-lead-beryllium alloy (UNS No. C17465) rods and bars in straight lengths. Tempers available under this specification are: TB00 (solution heat treated (A)), TF00 (precipitation hardened (AT)), TD04 (solution heat treated and cold worked: hard (H)), and TH04 (hard and precipitation heat treated (HT)). Materials shall be tested and adhere to mechanical (tensile strength and Rockwell hardness), electrical conductivity, and chemical composition requirements.
SCOPE
1.1 This specification establishes the requirements for Copper Alloy UNS Nos. C17500, C17510, C17540, and C17465 rod and bar in straight lengths.  
1.2 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units, which are provided for information only and are not considered standard.  
1.3 The following safety hazard caveat pertains only to the test method(s) described in this specification.  
1.3.1 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 environmental practices and to determine the applicability of regulatory limitations prior to use.  
1.4 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: 31-Oct-2022
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.02 - Rod, Bar, Wire, Shapes and Forgings

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:B441 −22
Standard Specification for
Copper-Cobalt-Beryllium Alloy, Copper-Nickel-Beryllium
Alloy, Copper-Nickel-Lead-Beryllium Alloy, and Copper-
1
Nickel-Cobalt Alloy Rod and Bar
This standard is issued under the fixed designation B441; 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* B249/B249M Specification for General Requirements for
Wrought Copper and Copper-Alloy Rod, Bar, Shapes and
1.1 This specification establishes the requirements for Cop-
Forgings
per Alloy UNS Nos. C17500, C17510, C17540, and C17465
B846 Terminology for Copper and Copper Alloys
rod and bar in straight lengths.
E8/E8M Test Methods for Tension Testing of Metallic Ma-
1.2 Units—The values stated in inch-pound units are to be
terials
regarded as standard. The values given in parentheses are
E18 Test Methods for Rockwell Hardness of Metallic Ma-
mathematical conversions to SI units, which are provided for
terials
information only and are not considered standard.
E1004 Test Method for Determining Electrical Conductivity
Using the Electromagnetic (Eddy Current) Method
1.3 The following safety hazard caveat pertains only to the
test method(s) described in this specification.
1.3.1 This standard does not purport to address all of the 3. General Requirements
safety concerns, if any, associated with its use. It is the
3.1 The following sections of Specification B249/B249M
responsibility of the user of this standard to establish appro-
constitute a part of this specification:
priate safety, health, and environmental practices and to
3.1.1 Terminology
determine the applicability of regulatory limitations prior to
3.1.2 Materials and Manufacture
use.
3.1.3 Dimensions and Permissible Variations
1.4 This international standard was developed in accor-
3.1.4 Workmanship, Finish, and Appearance
dance with internationally recognized principles on standard-
3.1.5 Sampling
ization established in the Decision on Principles for the
3.1.6 Number of Tests and Retests
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical 3.1.7 Specimen Preparation
Barriers to Trade (TBT) Committee.
3.1.8 Test Methods
3.1.9 Significance of Numerical Limits
2. Referenced Documents
3.1.10 Inspection
2
2.1 ASTM Standards:
3.1.11 Rejection and Rehearing
B193 Test Method for Resistivity of Electrical Conductor
3.1.12 Certification
Materials
3.1.13 Test Report
B194 Specification for Copper-BerylliumAlloy Plate, Sheet,
3.1.14 Packaging and Package Marking
Strip, and Rolled Bar
3.1.15 Supplementary Requirements
3.2 In addition, when a section with a title identical to that
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
referenced in 3.1, above, appears in this specification, it
and CopperAlloys and is the direct responsibility of Subcommittee B05.02 on Rod,
Bar, Wire, Shapes and Forgings. contains additional requirements that supplement those appear-
Current edition approved Nov. 1, 2022. Published November 2022. Originally
ing in Specification B249/B249M.
approved in 1966. Last previous edition approved in 2016 as B441–16. DOI:
10.1520/B0441-22.
2
4. Terminology
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4.1 For definition of terms related to copper and copper
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. alloys, refer to Terminology B846.
*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 ----------------------
B441−22
5. Ordering Information 7. Temper
5.1 Include the following specified choices when placing 7.1 The standard tempers for products described in this
orders for product under this specification, as applicable: specification are given in Table 2 and Table 3.
5.1.1 ASTM designation and year of issue,
5.1.2 Copper Alloy UNS No. designation,
8. Physical Property Requirements
5.1.3 Temper (Section 7),
8.1 Electrical Conductivity Requirement:
5.1.4 Form of product (cross section such as round,
8.1.1 Electrical conductivity shall be the product accept/
hexagonal, octagonal, rectangular, or square),
reject criterion when
...

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: B441 − 16 B441 − 22
Standard Specification for
Copper-Cobalt-Beryllium, Copper-Nickel-Beryllium, and
Copper-Nickel-Lead-Beryllium Copper-Cobalt-Beryllium
Alloy, Copper-Nickel-Beryllium Alloy, Copper-Nickel-Lead-
Beryllium Alloy, and Copper-Nickel-Cobalt Alloy Rod and
1
Bar (UNS Nos. C17500, C17510, and C17465)
This standard is issued under the fixed designation B441; 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-cobalt-beryllium alloy (UNS No. C17500), copper-nickel-beryllium
alloy (UNS No. C17510), and copper-nickel-lead-beryllium alloy (UNS No. C17465) Copper Alloy UNS Nos. C17500, C17510,
C17540, and C17465 rod and bar in straight lengths.
1.2 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units, which are provided for information only and are not considered standard.
1.3 The following safety hazard caveat pertains only to the test method(s) described in this specification.
1.3.1 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 safety, health, and healthenvironmental practices and to determine the
applicability of regulatory limitations prior to use.
1.4 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
2.1 ASTM Standards:
B193 Test Method for Resistivity of Electrical Conductor Materials
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
B846 Terminology for Copper and Copper Alloys
E8/E8M Test Methods for Tension Testing of Metallic Materials
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 Oct. 1, 2016Nov. 1, 2022. Published November 2016November 2022. Originally approved in 1966. Last previous edition approved in 20102016
as B441–04(2010).B441–16. DOI: 10.1520/B0441-16.10.1520/B0441-22.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’sstandard’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
1

---------------------- Page: 1 ----------------------
B441 − 22
E18 Test Methods for Rockwell Hardness of Metallic Materials
E1004 Test Method for Determining Electrical Conductivity Using the Electromagnetic (Eddy Current) Method
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 Materials and Manufacture,Manufacture
3.1.3 Dimensions and Permissible Variations,Variations
3.1.4 Workmanship, Finish, and Appearance,Appearance
3.1.5 Sampling,Sampling
3.1.6 Number of Tests and Retests,Retests
3.1.7 Specimen Preparation,Preparation
3.1.8 Test Methods,Methods
3.1.9 Significance of Numerical Limits,Limits
3.1.10 Inspection,Inspection
3.1.11 Rejection and Rehearing,Rehearing
3.1.12 Certification,Certification
3.1.13 Test Report,Report
3.1.14 Packaging and Package Marking, andMarking
3.1.15 Supplementary Requirements.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 that supplement those appearing in Specification B249/B249M.
4. Terminology
4.1 For definition of terms related to copper and copper allo
...