ASTM B103/B103M-15
- Standard Specification for Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar
- standard by ASTM International, 05/15/2015
- Publisher: ASTM
$22.00$44.00
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 |
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