Standard Historical Last Updated: Aug 16, 2017 Track Document
ASTM B103/B103M-98e2

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

Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar B0103_B0103M-98E02 ASTM|B0103_B0103M-98E02|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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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 Nominal Composition, %Previously Used
UNS No.CopperTin ZincLeadDesignation
C51000955. . . . . .A1
C51100964. . . . . .A
C51900946. . . . . .
C5210092 8. . .. . .C
C524009010. . . . . .D
C53400945. . . 1B1
C5440088444B2

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, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

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Details
Book of Standards Volume: 02.01
Developed by Subcommittee: B05.01
Pages: 6
DOI: 10.1520/B0103_B0103M-98E02
ICS Code: 77.150.30