Standard Historical Last Updated: Dec 31, 2010 Track Document
ASTM B103/B103M-09

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

Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar B0103_B0103M-09 ASTM|B0103_B0103M-09|en-US Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar Standard new BOS Vol. 02.01 Committee B05
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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.

Scope

1.1 This specification establishes 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. Nominal Composition, %Previously Used Designation
CopperTin ZincLead
C51000955. . . . . .A1
C51100964. . . . . .A
C51180964. . .. . .. . .
C51900946. . . . . .
C52100A92 8. . .. . .C
C52180928. . . . . . . . .
C524009010 . . . . . .D
C53400945. . . 1B1
C5440088444B2
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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 SI units or inch-pound units are to be regarded separately as standard. 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.

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Details
Book of Standards Volume: 02.01
Developed by Subcommittee: B05.01
Pages: 7
DOI: 10.1520/B0103_B0103M-09
ICS Code: 77.150.30