Standard Specification for Aluminum Bronze Sheet, Strip, and Rolled Bar

ABSTRACT
This specification establishes the requirements for UNS C61300 and C61400 copper aluminum bronze alloy sheets, strips, and rolled bars. These products are intended for drawing, forming, stamping, and bending applications but not for electrical applications. Each product is hot or cold rolled to finish gage and then annealed, if required, to meet the required temper properties. This specification also contains information on the required tensile strength, yield strength at extension under load, and elongation for different temper designations and product dimensions.
SCOPE
1.1 This specification2 establishes the requirements for Copper Alloy UNS Nos. C61300 and C61400 aluminum bronze sheet, strip, and rolled bar.  
1.2 The products made to this specification are commonly used for drawing, forming, stamping, and bending applications and are not intended for electrical applications.
Note 1: The products produced under this general specification may be used in many applications in which the individual requirements may be too specific to be determined by normal physical or mechanical testing. Therefore, it may be advisable for the purchaser to submit samples or drawings to the manufacturer to be assured that the product furnished is suitable for the intended application.
Note 2: Refer to Specification B171/B171M for plate product.  
1.3 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.  
1.4 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-Mar-2020
Technical Committee
B05 - Copper and Copper Alloys

Relations

Effective Date
01-Apr-2020
Effective Date
01-Jan-2024
Effective Date
01-Aug-2019
Effective Date
01-Jan-2019
Effective Date
01-Oct-2018
Effective Date
01-Oct-2018
Effective Date
01-Mar-2018
Effective Date
01-Oct-2016
Effective Date
15-Jul-2016
Effective Date
01-Feb-2015
Effective Date
01-Jun-2013
Effective Date
01-Apr-2013
Effective Date
15-Oct-2012
Effective Date
01-Oct-2012
Effective Date
01-Apr-2012

Overview

ASTM B169/B169M-20: Standard Specification for Aluminum Bronze Sheet, Strip, and Rolled Bar establishes the requirements for copper aluminum bronze alloys UNS C61300 and UNS C61400 in the form of sheets, strips, and rolled bars. Developed by ASTM International, this specification provides a framework for manufacturers, suppliers, and end-users to ensure consistent quality and mechanical properties for aluminum bronze products intended for non-electrical applications such as forming, drawing, stamping, and bending.

Key Topics

  • Material and Manufacture:

    • Covers wrought forms of copper alloys C61300 and C61400.
    • Specifies manufacturing methods including hot or cold working and annealing to achieve desired temper and final properties.
  • Chemical Composition:

    • Establishes compositional requirements, limiting elements such as iron, aluminum, manganese, and lead.
    • Compliance with specific copper content ensures the mechanical characteristics and corrosion resistance typical of aluminum bronzes.
  • Mechanical Properties:

    • Defines minimum requirements for tensile strength, yield strength (both at 0.2% and 0.5% extension under load), and elongation.
    • Mechanical testing methods, such as those outlined in ASTM E8/E8M for tension and E290 for bend testing, are required for conformance.
  • Dimensions and Tolerances:

    • Specifies size constraints and tolerances in both inch-pound and SI units.
    • Addresses permissible variations in thickness, width, length, straightness, and edge contours.
  • Product Temper:

    • Standard tempers include M20 (hot-rolled) and O25/O60 (annealed).
    • Purchasers should verify availability of specific tempers with suppliers.
  • Test and Inspection:

    • Lays out requirements for sampling, number of tests, specimen preparation, and test reporting.
    • Includes guidelines for certification and mill test reports, particularly for products purchased under codes such as the ASME Boiler and Pressure Vessel Code.

Applications

Aluminum bronze sheets, strips, and rolled bars governed by ASTM B169/B169M-20 are widely used in industries requiring high-strength, corrosion-resistant materials with good formability but not intended for electrical conductivity. Typical applications include:

  • Fabrication of marine components and fittings
  • Manufacture of industrial bushings, washers, and hardware
  • Automotive and aerospace stamped parts
  • Architectural elements requiring durability and aesthetic properties

Due to their excellent performance in demanding working environments, these products are often specified for further forming, drawing, and bending operations.

Related Standards

Several related ASTM standards provide additional guidance and requirements relevant to aluminum bronze and other copper alloy products:

  • ASTM B171/B171M: Specification for copper-alloy plate and sheet, often referenced for applications involving pressure vessels and heat exchangers.
  • ASTM B248/B248M: General requirements for wrought copper and copper-alloy plate, sheet, strip, and bar.
  • ASTM B601: Classification for temper designations for copper and copper alloys - both wrought and cast.
  • ASTM B846: Terminology standard for copper and copper alloys.
  • ASTM E8/E8M: Test methods for tension testing of metallic materials.
  • ASTM E290: Test methods for bend testing for material ductility.

These standards collectively facilitate the consistent specification, manufacture, and verification of copper alloy products within global supply chains.


Keywords: ASTM B169, B169M, aluminum bronze sheet, aluminum bronze strip, aluminum bronze rolled bar, UNS C61300, UNS C61400, copper alloys, mechanical properties, industrial standards, metal forming, non-electrical copper alloys, ASTM International.

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Frequently Asked Questions

ASTM B169/B169M-20 is a technical specification published by ASTM International. Its full title is "Standard Specification for Aluminum Bronze Sheet, Strip, and Rolled Bar". This standard covers: ABSTRACT This specification establishes the requirements for UNS C61300 and C61400 copper aluminum bronze alloy sheets, strips, and rolled bars. These products are intended for drawing, forming, stamping, and bending applications but not for electrical applications. Each product is hot or cold rolled to finish gage and then annealed, if required, to meet the required temper properties. This specification also contains information on the required tensile strength, yield strength at extension under load, and elongation for different temper designations and product dimensions. SCOPE 1.1 This specification2 establishes the requirements for Copper Alloy UNS Nos. C61300 and C61400 aluminum bronze sheet, strip, and rolled bar. 1.2 The products made to this specification are commonly used for drawing, forming, stamping, and bending applications and are not intended for electrical applications. Note 1: The products produced under this general specification may be used in many applications in which the individual requirements may be too specific to be determined by normal physical or mechanical testing. Therefore, it may be advisable for the purchaser to submit samples or drawings to the manufacturer to be assured that the product furnished is suitable for the intended application. Note 2: Refer to Specification B171/B171M for plate product. 1.3 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. 1.4 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.

ABSTRACT This specification establishes the requirements for UNS C61300 and C61400 copper aluminum bronze alloy sheets, strips, and rolled bars. These products are intended for drawing, forming, stamping, and bending applications but not for electrical applications. Each product is hot or cold rolled to finish gage and then annealed, if required, to meet the required temper properties. This specification also contains information on the required tensile strength, yield strength at extension under load, and elongation for different temper designations and product dimensions. SCOPE 1.1 This specification2 establishes the requirements for Copper Alloy UNS Nos. C61300 and C61400 aluminum bronze sheet, strip, and rolled bar. 1.2 The products made to this specification are commonly used for drawing, forming, stamping, and bending applications and are not intended for electrical applications. Note 1: The products produced under this general specification may be used in many applications in which the individual requirements may be too specific to be determined by normal physical or mechanical testing. Therefore, it may be advisable for the purchaser to submit samples or drawings to the manufacturer to be assured that the product furnished is suitable for the intended application. Note 2: Refer to Specification B171/B171M for plate product. 1.3 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. 1.4 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.

ASTM B169/B169M-20 is classified under the following ICS (International Classification for Standards) categories: 77.150.10 - Aluminium products. The ICS classification helps identify the subject area and facilitates finding related standards.

ASTM B169/B169M-20 has the following relationships with other standards: It is inter standard links to ASTM B169/B169M-15, ASTM E8/E8M-24, ASTM B846-19a, ASTM B846-19, ASTM B601-18a, ASTM B171/B171M-18, ASTM B601-18, ASTM B601-16, ASTM E8/E8M-16, ASTM E8/E8M-15, ASTM E8/E8M-13, ASTM E290-13, ASTM B171/B171M-12, ASTM B601-12, ASTM B248M-12. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

ASTM B169/B169M-20 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

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: B169/B169M −20
Standard Specification for
Aluminum Bronze Sheet, Strip, and Rolled Bar
This standard is issued under the fixed designation B169/B169M; 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* B248 Specification for General Requirements for Wrought
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
1.1 Thisspecification establishestherequirementsforCop-
Bar
per Alloy UNS Nos. C61300 and C61400 aluminum bronze
B248M SpecificationforGeneralRequirementsforWrought
sheet, strip, and rolled bar.
Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
1.2 The products made to this specification are commonly
Bar (Metric)
used for drawing, forming, stamping, and bending applications
B601 Classification forTemper Designations for Copper and
and are not intended for electrical applications.
Copper Alloys—Wrought and Cast
B846 Terminology for Copper and Copper Alloys
NOTE 1—The products produced under this general specification may
be used in many applications in which the individual requirements may be E8/E8M Test Methods for Tension Testing of Metallic Ma-
too specific to be determined by normal physical or mechanical testing.
terials
Therefore, it may be advisable for the purchaser to submit samples or
E290 Test Methods for Bend Testing of Material for Ductil-
drawings to the manufacturer to be assured that the product furnished is
ity
suitable for the intended application.
NOTE 2—Refer to Specification B171/B171M for plate product.
3. General Requirements
1.3 Units—The values stated in either inch-pound units or
SI units are to be regarded separately as standard. Within the 3.1 The following sections of Specifications B248 or
B248M constitute a part of this specification.
text, SI units are shown in brackets. The values stated in each
system are not necessarily exact equivalents; therefore, to 3.1.1 Terminology
3.1.2 Workmanship, Finish, and Appearance
ensure conformance with the standard, each system shall be
used independently of the other, and values from the two 3.1.3 Sampling
3.1.4 Number of Tests and Retests
systems shall not be combined.
3.1.5 Specimen Preparation
1.4 This international standard was developed in accor-
3.1.6 Significance of Numerical Limits
dance with internationally recognized principles on standard-
3.1.7 Inspection
ization established in the Decision on Principles for the
3.1.8 Rejection and Rehearing
Development of International Standards, Guides and Recom-
3.1.9 Certification
mendations issued by the World Trade Organization Technical
3.1.10 Test Reports
Barriers to Trade (TBT) Committee.
3.1.11 Packaging and Package Marking
2. Referenced Documents
3.1.12 Supplementary Requirements
2.1 ASTM Standards:
3.2 In addition, when a section with a title identical to that
B171/B171M Specification for Copper-Alloy Plate and
referenced in 3.1, above, appears in this specification, it
Sheet for Pressure Vessels, Condensers, and Heat Ex-
contains additional requirements which supplement those ap-
changers
pearing in Specifications B248 or B248M.
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper 4. Terminology
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.01onPlate,
4.1 For definitions of terms related to copper and copper
Sheet, and Strip.
Current edition approved April 1, 2020. Published April 2020. Originally alloys, refer to Terminology B846.
approved in 1941. Last previous edition approved in 2015 as B169/B169M–15.
DOI: 10.1520/B0169_B0169M–20.
5. Ordering Information
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
cation SB-169 in Section II of that code.
5.1 Include the following specified choices when placing
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
orders for product under this specification, as applicable:
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1.1 ASTM designation and year of issue;
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 5.1.2 Copper [Alloy] UNS No. designation;
*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
B169/B169M − 20
5.1.3 Temper, (Section 8); designation specified in the ordering information.
5.1.4 Dimensions,thickness,width,andlength(Section 11); 7.1.1 These composition limits do not preclude the presence
5.1.5 How furnished: straight lengths or coils; and ofotherelements.Byagreementbetweenthemanufacturerand
5.1.6 Quantity—total weight or total length or number of purchaser, limits may be established and analysis required for
pieces of each size. unnamed elements.
5.2 The following options are available but may not be 7.2 For alloys in which copper is listed as “remainder,”
included unless specified at the time of placing the order when copper is the difference between the sum of results of all
required: elements determined and 100 %. When all elements in Table 1
5.2.1 Typeofedge(forexample,slit,sheared,sawed,andso for the specified alloy are determined, the sum of the results
forth); shall be:
5.2.2 Heat identification or traceability details;
Copper Alloy UNS No. Sum of Results % min.
5.2.3 Bend test;
C61300 99.8
5.2.4 Certification;
C61400 99.5
5.2.5 Test Report;
5.2.6 If product is purchased for agencies of the U.S.
8. Temper
Government (see Supplementary Requirements section of
8.1 The standard tempers for products described in this
Specifications B248 or B248M for additional requirements);
specification are given in Table 2 and Table 3.
and
8.1.1 Hot-rolled temper M20.
5.2.7 If product is ordered for ASME Boiler and Pressure
8.1.2 Annealed-to-temper O25 or O60.
Vessel Code Application (See Certification Section 14).
NOTE 3—Inquiry should be made to the supplier concerning the
availability of the specific temper required.
6. Materials and Manufacture
6.1 Materials:
9. Mechanical Property Requirements
6.1.1 The material of manufacture shall be a form (cast bar,
9.1 Tensile Strength Requirements:
cake, slab, etc.) of CopperAlloy UNS No. C61300 or C61400
9.1.1 Product furnished under this specification shall con-
of such purity and soundness as to be suitable for processing
form to the tensile requirements prescribed in Table 2 or Table
into the products prescribed herein.
3 when tested in accordance with Test Methods E8/E8M.
6.2 Manufacture:
9.1.2 The test specimens shall be taken so that the longitu-
6.2.1 The product shall be manufactured by such hot
dinal axis of the specimen is parallel to the direction of rolling.
working, cold working, and annealing processes as to produce
a uniform wrought structure in the finished product.
10. Bending Requirements
6.2.2 Theproductshallbehotorcoldworkedtothefinished
10.1 When specified in the contract or purchase order, the
size, and subsequently annealed, when required, to meet the
test specimen shall withstand being bent cold perpendicular to
temper p
...


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: B169/B169M − 15 B169/B169M − 20
Standard Specification for
Aluminum Bronze Sheet, Strip, and Rolled Bar
This standard is issued under the fixed designation B169/B169M; 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 Alloy UNS Nos. C61300 and C61400 aluminum bronze sheet,
strip, and rolled bar.
1.2 The products made to this specification are commonly used for drawing, forming, stamping, and bending applications and
are not intended for electrical applications.
NOTE 1—The products produced under this general specification may be used in many applications in which the individual requirements may be too
specific to be determined by normal physical or mechanical testing. Therefore, it may be advisable for the purchaser to submit samples or drawings to
the manufacturer to be assured that the product furnished is suitable for the intended application.
NOTE 2—Refer to Specification B171/B171M for plate product.
1.3 Units—Values The values stated in either SIinch-pound units or inch-poundSI 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.
1.4 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
2.1 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
E290 Test Methods for Bend Testing of Material for Ductility
3. General Requirements
3.1 The following sections of Specifications B248 or B248M formconstitute a part of this specification:specification.
3.1.1 Terminology,Terminology
3.1.2 Workmanship, Finish, and Appearance,Appearance
3.1.3 Sampling,Sampling
3.1.4 Number of Tests and Retests,Retests
3.1.5 Specimen Preparation,Preparation
3.1.6 Significance of Numerical Limits,Limits
3.1.7 Inspection,Inspection
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 May 1, 2015April 1, 2020. Published May 2015April 2020. Originally approved in 1941. Last previous edition approved in 20102015 as
B169/B169M – 10. –15. DOI: 10.1520/B0169_B0169M-15.10.1520/B0169_B0169M–20.
For ASME Boiler and Pressure Vessel Code applications, see related Specification SB-169 in Section II of that code.
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.
*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
B169/B169M − 20
3.1.8 Rejection and Rehearing,Rehearing
3.1.9 Certification,Certification
3.1.10 Mill Test Reports,Reports
3.1.11 Packaging and Package Marking,Marking
3.1.12 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 which supplement those appearing in Specifications B248 or B248M.
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.applicable:
5.1.1 ASTM designation and year of issue,issue;
5.1.2 Copper [Alloy] UNS No. designation,designation;
5.1.3 Temper, (Section 8),);
5.1.4 Dimensions, thickness, width, and widthlength (Section 1211),);
5.1.5 Length,
5.1.5 How furnished,furnished: straight lengths or coils,coils; and
5.1.6 Quantity—total weight or total length or number of pieces of each size,size.
5.1.8 When product is ordered for ASME Boiler and Pressure Vessel Code Application, and
5.1.9 When product is ordered for agencies of the U.S. government.
5.2 The following options are available but may not be included unless specified at the time of placing the order when required:
5.2.1 Type of edge (for example, slit, sheared, sawed, and so forth),forth);
5.2.2 Heat identification or traceability details,details;
5.2.3 Bend test,test;
5.2.4 Certification;
5.2.5 Test Report;
5.2.6 Certification, If product is purchased for agencies of the U.S. Government (see Supplementary Requirements section of
Specifications B248 or B248M for additional requirements); and
5.2.7 Mill Test Report.If product is ordered for ASME Boiler and Pressure Vessel Code Application (See Certification Section
14).
6. Materials and Manufacture
6.1 Materials:
6.1.1 The material of manufacture shall be a form (cast bar, cake, slab, etc.) of Copper Alloy UNS No. C61300 or C61400 of
such purity and soundness as to be suitable for processing into the products prescribed herein.
6.2 Manufacture:
6.2.1 The product shall be manufactured by such hot-working, cold-working, hot working, cold working, and annealing
processes as to produce a uniform wrought structure in the finished product. The product shall be hot or cold rolled to finish gage
and subsequently annealed, if required, to meet the temper properties specified.
6.2.2 The product shall be hot or cold worked to the finished size, and subsequently annealed, when required, to meet the temper
properties specified.
6.3 Edges:
6.3.1 Slit edges shall be furnished unless otherwise specified 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 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.
7.2 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 elements in Table 1 for the specified alloy are determined, the sum of the results shall be:
Copper Alloy UNS No. Sum of Results % min.
C61300 99.8
C61400 99.5
B169/B169M − 20
TABLE 1 Chemical Requirements
Composition,%
Element Copper Alloy UNS No.
A
C61300 C61400
Copper (including silver) remainder remainder
Copper (including Silver) remainder remainder
Lead, max 0.01 0.01
Iron 2.0–3.0 1.5–3.5
Zinc, max 0.10 0.20
Aluminum 6.0–7.5 6.0–8.0
Manganese, max 0.20 1.0
Phosphorus, max 0.015 0.015
Silicon, max 0.10 .
Tin 0.20–0.50 .
Nickel (including co
...

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