ASTM B103/B103M-04

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

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 DesignationCopperTin ZincLeadC51000955. . . . . .A1C51100964. . . . . .AC51180964. . .. . .. . .C51900946. . . . . .C5210092 8. . .. . .CC52180928. . . . . . . . . C524009010. . . . . .DC53400945. . . 1B1C5440088444B2
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.

General Information

• Status: Historical
• Publication Date: 30-Sep-2004
• ICS: 77.150.30 - Copper products
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.01 - Plate, Sheet, and Strip

Relations

• Replaces: ASTM B103/B103M-98e2 - Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar
• Effective Date: 01-Oct-2004
• Replaced By: ASTM B103/B103M-04e1 - Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar
• Effective Date: 01-Oct-2004
• Referred By: ASTM F375-20 - Standard Specification for Integrated Circuit Lead Frame Material (Withdrawn 2023)
• Effective Date: 01-Oct-2004
• Referred By: ASTM B248-22 - Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
• Effective Date: 01-Oct-2004
• Referred By: ASTM F1182-07(2023) - Standard Specification for Anodes, Sacrificial Zinc Alloy
• Effective Date: 01-Oct-2004
• Referred By: ASTM E18-22 - Standard Test Methods for Rockwell Hardness of Metallic Materials
• Effective Date: 01-Oct-2004
• Referred By: ASTM B248M-22 - Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar (Metric)
• Effective Date: 01-Oct-2004

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
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
2
UNS No. Copper Tin Zinc Lead Designation
rials [Metric]
E 54 Test Methods for Chemical Analysis of Special
C51000 95 5 . . . . . . A1
4
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
e2 3
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
2
The UNS system for copper and copper alloys (see Practice E 527) is a simple contact ASTM Customer Service at [e-mail]. 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
...