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    ASTM B103 / B103M - 15

    Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar

    Active Standard ASTM B103 / B103M | Developed by Subcommittee: B05.01

    Book of Standards Volume: 02.01


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    Abstract

    This specification covers plate, rolled bar, sheet, and strip of copper-tin alloy (phosphor bronze plate), copper-tin-lead alloy (leaded phosphor bronze), and copper-tin-lead-zinc alloy (bearing bronze). Copper alloys covered include UNS Nos. C51000, C51100, C51180, C51900, C52100, C52180, C52400, C53400, and C54400. Product shall be manufactured by hot or cold working, rolling, and annealing. Chemical composition of the materials shall conform to UNS designation of the material. Product shall conform to chemical analysis, tensile strength and Rockwell hardness tests specified in the specification. Chemical composition testing shall be performed for each element, namely, copper, iron, lead, phosphorus, tin, and zinc. Tension test shall be made so that the longitudinal axis of the specimen is parallel to direction of rolling.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification establishes the requirements for copper-tin alloy (phosphor bronze), copper-tin-lead alloy (leaded phosphor bronze), and copper-tin-lead-zinc alloy (bearing bronze), plate, sheet, strip, and rolled bar. The phosphor bronzes commonly are used for deep drawing into bellows and stamping and forming into spring devices and into terminals and connectors for electrical apparatus because they combine high strength with high elongation. The leaded phosphor bronzes are used where strength, corrosion resistance, and machinability are required. The bearing bronze is used in bushings, bearings, and load-bearing thrust washers. The following alloys are covered:

    Copper Alloy UNS No.2

    Nominal Composition, %

    Previously Used Designation

    Copper

    Tin

    Zinc

    Lead

     

     

     

     

     

     

    C51000

    95

    5

    . . .

    . . .

    A1

    C51100

    96

    4

    . . .

    . . .

    A 

    C51180

    96

    4

    . . .

    . . .

    . . .

    C51900

    94

    6

    . . .

    . . .

     

     C52100A

    92

    8

    . . .

    . . .

    C 

    C52180

    92

    8

    . . .

    . . .

    . . .

    C52400

    90

    10 

    . . .

    . . .

    D 

    C53400

    94

    5

    . . .

    1

    B1

    C54400

    88

    4

    3

    4

    B2

    (A) SAE Specification CA 521 conforms to the requirements of UNS No. C52100.

    Note 1: All of the above alloys contain small amounts of phosphorus, used as a deoxidant in melting, and to enhance the mechanical properties.

    1.2 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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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 and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    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 Test Methods for Tension Testing of Metallic Materials

    E8M Test Methods for Tension Testing of Metallic Materials [Metric]

    E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes

    E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)

    E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys

    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)


    ICS Code

    ICS Number Code 77.150.30 (Copper products)

    UNSPSC Code

    UNSPSC Code 30262300(Copper sheets); 72121100(Commercial and office building construction services)


    Referencing This Standard

    DOI: 10.1520/B0103_B0103M-15

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM B103 / B103M-15, Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar, ASTM International, West Conshohocken, PA, 2015, www.astm.org

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