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Copper Based Alloys Chart
| Alloy | Similar Designation |
Usual Condition |
Castability | Machinability | Conosion Resistance | Weldability | Hardanable | Density (g/cm3) | As-Cast Tensile Strength (psi) | As-Cast Yield Strength (psi) | As-Cast Elongation (%) | As-Cast Hardness | Annealed Tensile Strength (psi) | Annealed Yield Strength (psi) | Annealed Elongation (%) | Annealed Hardness | Heat Treated Tensile Streangth (psi) | Heat Treated Yield Strength (psi) | Heat Treated Elongation (%) | Heat Treated Hardness | Comments |
| Be Cu 10C (C82000) | MIL C 19454 | Solution Treated Precipitation Hardened | 3 | 1 | 3 | 4 | Yes | 8.8 | 40,000 | 9,000 | 20 | HRB 45 max | 90,000 | 50,000 | 5 | HRB 90 | Better electrical conductivity than Be Cu 20C. |
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| Be Cu 20C (C82500) | AMS 4890 MIL C 11866 MIL C 19494 |
Solution Treated Precipitation Hardened | 1 | 4 | 1 | 4 | Yes | 8.3 | 55,000 | 20,000 | 20 | HRB 75 max | 155,000 | 140,000 | 1 | HRC 40 | Easiest to cast. Most popular Be Cu Alloy. Can be heat treated to strength and hardness of steal, with combined properties of electrical conductivity, corrosion, and wear resistance |
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| Be Cu 275 C (C82800) | MIL C 19464 | Solution Treated Precipitation Hardened | 2 | 4 | 2 | 4 | Yes | 8.1 | 70,000 | 40,000 | 15 | HRB 90 max | 180ksi | 165ksi | 3 | HRC 44 | Highest hardness. Readily cast. Properties similar to Be Cu 20. |
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| Silican Brass (C87500) | ASTM B584 MIL C 22087 |
As-Cast | 2 | 2 | 2 | 2 | No | 8.3 | 60,000 | 35,000 | 16 | HRB 55 | Very good castability and toughness. High strenght at high temperatures; good resistance to carrosion and pressure-tightness. |
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| Silion Bronze (C87300) | ASTM B763 MIL C 11866 |
As-Cast | 3 | 3 | 3 | 3 | No | 8.3 | 45,000 | 28,000 | 12 | HRB 50 | Highest strength at elevated temperatures, Used in place of pur copper where strenght is required. |
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| Phosphur Bronze (C90300) | ASTM B427 | As-Cast | 4 | 2 | 2 | 3 | No | 8.8 | 45,000 | 25,000 | 30 | HRB 45 | Cast gears and geor blanks, Good wear and carrosion resistance, Retains ductility, tensile, and impact strengths at low temperatures. |
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| Navy "G" (C90700) | ASTM B584 MIL C 22087 |
As-Cast | 4 | 2 | 2 | 3 | No | 8.7 | 40,000 | 20,000 | ? | HRB 40 | Bearings and bushings. General utility branze for high pressure applications and severe conditions. |
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| Navy "M" (C92200) | ASTM B61 ASTM B584 |
As-Cast | 3 | 2 | 2 | 5 | No | 8.6 | 35,000 | 16,000 | 30 | HRB 35 | Valves and fittings. Readily machined. |
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| Red Brass 85-5-5-5 (C83600) | ASTM B62 ASTM B584 |
As-Cast | 2 | 2 | 2 | 3 | No | 8.8 | 30,000 | 20,000 | 20 | HRB 30 | All purpose alloy. Good machinability. | ||||||||
| Yellow Brass (C85700) | ATM B584 | As-Cast | 5 | 3 | 2 | 4 | No | 8.4 | 30,000 | 11,000 | 20 | HRB 35 | Good Machinability. Often used for pipe fittings. |
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| Manganese Branze A (C86500) | ASTM B584 AMS 4860 MIL C 22087 |
As-Cast | 4 | 2 | 1 | 4 | No | 8.3 | 71,000 | 28,000 | 30 | HRB 80 | Good for salt and fresh water environments. |