BS 2874 PB 102 Phosphorus Bronze
Bronze Family: Leaded Phosphor Bronze
C 510 Phosphor Bronze Grade B is a METALCO standard alloy and finds use in electrical applications, as well as many industrial applications. It is used as electrical connectors and partially due to its excellent machinability finds use as bushings, gears, pinions, screw machine products, thrust washers, valve parts, and shafts.
Specification : | |
Phosphors Bronze |
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Equivalent Specifications*
ASTM B139
B139M
Copper Alloy UNS C54400
Reference Specifications*
SAE J461
SAE J463
ASTM B103
Equivalent specifications are verified and updated annually.
Chemical Composition (%) | |||||
Cu | Sn | P | Fe | Pb | Zn |
Remainder | 3.5 4.5 | 0.01 0.50 | 0.10 max. | 3.0 - 4.0 | 1.5 4.5 |
Sum of all named elements = 99.5% |
Mechanical Properties | ||||
Temper HO4 hard | ||||
Nominal Diameter | Tensile Strength | Elongation** | ||
Inches/mm | ksi | MPa | % | |
" " incl./6 - 12 mm. incl. | 60 | 415 | 10 | |
Over " to 1" incl./12-25 mm incl. | 55 | 380 | 12 | |
Over 1.00"/25 mm | 50 | 345 | 15 |
**Elongation in 4D
Chemical Composition and Mechanical Properties shown pertain to ASTM B139/B139 M only.
Machinability Rating 80 (Free Cutting Brass = 100)
Physical Properties | ||
| English | Metric |
Melting Point Liquidus | 1830 F | 999 C |
Melting Point Solidus | 1700 F | 927 C |
Density | 0.320 lb/in3 at 68 F | 8.89 gm/cm3 @ 20 C |
Specific Gravity | 8.890 | 8.89 |
Electrical Resistivity (Annealed) | 54.60 ohms-cmil/ft @ 68 F | 9.08 microhm-cm @ 20 C |
Electrical Conductivity (Annealed) | 19%IACS @ 68 F | 0.111 MegaSiemens/cm @ 20 C |
Thermal Conductivity | 50 Btu ft/(hr ft2F) @ 68 F | 86.5 W/mK @20 C |
Coefficient of Thermal Expansion | 9.60 10-6 per F (68-572 F) | 17.3 10-6 per C (20-300 C) |
Specific Heat Capacity | 0.090 Btu/lb/F @ 68 F | 377.1 J/kg K @293 K |
Modulus of Elasticity in Tension | 15,000 ksi | 103,400 MPa |
Fabrication Practices | |||
Soldering | Excellent | Capacity for Being Cold Worked | Good |
Brazing | Good | ||
Oxyacetylene Welding | Not Recommended | Annealing Temperature Minimum | 900 F or 483 C |
Gas Shielded Arc Welding | Not Recommended | Annealing Temperature Maximum | 1250 F or 677 C |
Coated Metal Arc Welding | Not Recommended | ||
Resistance Welding Spot | Not Recommended | ||
Resistance Welding Seam | Not Recommended | ||
Resistance Welding Butt | Fair |
METAL ALLOYS CORPORATION
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