ASTM B103/B103M-04

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Designation: B 103/B 103M – 04
Standard Specification for
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Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar
This standard is issued under the fixed designation B 103/B 103M; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 2. Referenced Documents
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1.1 This specification establishes copper-tin alloy (phosphor 2.1 ASTM Standards:
bronze), copper-tin-lead alloy (leaded phosphor bronze), and B 248 Specification for General Requirements for Wrought
copper-tin-lead-zinc alloy (bearing bronze), plate, sheet, strip, Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled
and rolled bar. The phosphor bronzes commonly are used for Bar
deep drawing into bellows and stamping and forming into B 248M Specification for General Requirements for
spring devices and into terminals and connectors for electrical Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and
apparatus because they combine high strength with high Rolled Bar [Metric]
elongation. The leaded phosphor bronzes are used where B 601 Classification for Temper Designations for Copper
strength, corrosion resistance, and machinability are required. and Copper Alloys—Wrought and Cast
The bearing bronze is used in bushings, bearings, and load- B 846 Terminology for Copper and Copper Alloys
bearing thrust washers. The following alloys are covered: E 8 Test Methods for Tension Testing of Metallic Materials
E 8M Test Methods for Tension Testing of Metallic Mate-
Copper Alloy Nominal Composition, % Previously Used
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UNS No. Copper Tin Zinc Lead Designation
rials [Metric]
E 54 Test Methods for Chemical Analysis of Special
C51000 95 5 . . . . . . A1
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Brasses and Bronzes
C51100 96 4 . . . . . . A
C51180 96 4 . . .
E 62 Test Methods for Chemical Analysis of Copper and
C51900 94 6 . . . . . .
Copper Alloys (Photometric Method)
A
C52100 92 8 . . C
C52180 92 8 . . . . . . . . . E 75 Test Methods for ChemicalAnalysis of Copper-Nickel
C52400 90 10 . . . . . . D
and Copper Nickel-Zinc Alloys
C53400 94 5 . . . 1 B1
E 255 Practice for Sampling Copper and CopperAlloys for
C54400 88 4 4 4 B2
__________________ Determination of Chemical Composition
A
SAE Specification CA521 conforms to the requirements of UNS No. C52100. E 478 Test Methods for Chemical Analysis of Copper
Alloys
NOTE 1—All of the above alloys contain small amounts of phosphorus,
E 527 Practice for Numbering Metals and Alloys
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
3. Terminology
are to be regarded separately as standard. Within the text, the
3.1 Definitions—For definitions of terms used in this speci-
SI units are shown in brackets. The values stated in each
fication, refer to Terminology B 846.
system are not exact equivalents; therefore, each system shall
be used independently of the other. Combining values from the
4. Ordering Information
two systems may result in nonconformance with the specifi-
4.1 Contracts or purchase orders for product under this
cation.
specification should include the following information:
4.1.1 ASTM designation and year of issue (for example,
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ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper B 103/B 103M – 04);
andCopperAlloysandisthedirectresponsibilityofSubcommitteeB05.01onPlate,
Sheet, and Strip.
Current edition approved Oct. 1, 2004. Published October 2004. Originally
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approved in 1936. Last previous edition approved in 1998 as B 103/B 103M – 98 . For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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The UNS system for copper and copper alloys (see Practice E 527) is a simple contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
expansion of the former standard designation system accomplished by the addition Standards volume information, refer to the standard’s Document Summary page on
of a prefix “C” and a suffix “00.” The suffix can be used to accommodate the ASTM website.
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composition variations of the base alloy. Withdrawn.
*ASummary 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.
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B 103/B 103M – 04
4.1.2 Copper Alloy UNS No. designation (for example, 6.1.1 The material of manufacture shall be a cast bar, cake,
C51000); slab, or Copper Alloy UNS No. C51000, C51100, C51900,
4.1.3 Temper (Section 8); C52100, C52400, C53400, or C54400 as specified
...