C86500 / CDA 865 Manganese Bronze Alloys
Specification :
| CDA | ASTM | Asarcon | SAE | AMS | Federal | Military | Other |
|---|---|---|---|---|---|---|---|
| C865 | B505 B505M |
J461 J462 |
4860 | QQ-C-390, C3 QQ-B-726, CLASS A |
MIL-C-22229, COMP 7 |
Chemical Composition :
| Cu%1 | Pb% | Sn% | Zn% | Fe% | Ni%2 | Al% | Mn% | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Chemical Composition according to ASTM B505/B505M-18
1In determining Cu min., Cu may be calculated as Cu + Ni. 2Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.0% min. Single values represent maximums.
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| 55.00- 60.00 |
0.40 | 1.00 | 36.00- 42.00 |
0.40- 2.00 |
1.00 | 0.50- 1.50 |
0.10- 1.50 |
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Machinability :
| Copper Alloy UNS No. | Machinability Rating | Density (lb/in3 at 68 °F) |
|---|---|---|
| C865 | 26 | 0.301 |
Mechanical Properties :
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Mechanical Properties according to ASTM B505/B505M-18
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| Tensile Strength, min | Yield Strength, at .5% Extension Under Load, min | Elongation, in 2in. or 50mm min | Brinell Hardness (3000 kg load) | Remarks | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | typical BHN | ||||||
| 70 | 483 | 25 | 172 | 25 | 130 | ||||||
Physical Properties :
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Physical Properties provided by CDA * Field Strength 16 kA/m
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| US Customary | Metric | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Melting Point – Liquidus | 1616 °F | 880 °C | |||||||||
| Melting Point – Solidus | 1583 °F | 862 °C | |||||||||
| Density | 0.301 lb/in3 at 68 °F | 8.33 gm/cm3 at 20 °C | |||||||||
| Specific Gravity | 8.33 | 8.33 | |||||||||
| Electrical Conductivity | 22% IACS at 68 °F | 0.128 MegaSiemens/cm at 20 °C | |||||||||
| Thermal Conductivity | 49.6 Btu/sq ft/ft hr/°F at 68 °F | 85.8 W/m at 20 °C | |||||||||
| Coefficient of Thermal Expansion 68-212 | 11.3 · 10-6 per °F (68-212 °F) | 19.5 · 10-6 per °C (20-100 °C) | |||||||||
| Specific Heat Capacity | 0.09 Btu/lb/°F at 68 °F | 377.1 J/kg at 293 °C | |||||||||
| Modulus of Elasticity in Tension | 15000 ksi | 103400 MPa | |||||||||
| Magnetic Permeability* | 1.09 | 1.09 | |||||||||
Fabrication Properties :
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Fabrication Properties provided by CDA
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| Joining Technique | Suitability | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Soldering | Fair | ||||||||||
| Brazing | Fair | ||||||||||
| Oxyacetylene Welding | Poor | ||||||||||
| Gas Shielded Arc Welding | Poor | ||||||||||
| Coated Metal Arc Welding | Poor | ||||||||||
Thermal Properties :
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Thermal Properties provided by CDA
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| Treatment | Temp./Time – US | Temp./Time – SI | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stress Temperature | 500 | 260 | |||||||||
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| Solution Time | 0.0 | ||||||||||
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