C86200 / CDA 862 Manganese Bronze Alloys
Specification :
| CDA | ASTM | ASARCON | SAE | AMS | Federal | Military | Other |
|---|---|---|---|---|---|---|---|
| C862 | B505 B505M |
430A J461 J462 |
QQ-C-390, C4; QQ-B-726, CLASS B |
MIL-C-22229, COMP 9 |
Chemical Composition :
| Cu%1 | Pb% | Sn% | Zn% | Fe% | Ni%2 | Al% | Mn% | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Chemical Composition according to ASTM B505/B505M-18
1In determining Cu min., Cu may be calculated as Cu + Ni. 2Ni value includes Co.
Single values represent maximums.
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|||||||||||
| 60.00- 66.00 |
0.20 | 0.20 | 22.00- 28.00 |
2.00- 4.00 |
1.00 | 3.00- 4.90 |
2.50- 5.00 |
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Machinability :
| Copper Alloy UNS No. | Machinability Rating | Density (lb/in3 at 68 °F) |
|---|---|---|
| C862 | 30 | 0.288 |
Mechanical Properties :
|
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 | ||||||
| 90 | 621 | 45 | 310 | 18 | 180 | ||||||
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 | 1725 °F | 941 °C | |||||||||
| Melting Point – Solidus | 1650 °F | 899 °C | |||||||||
| Density | 0.288 lb/in3 at 68 °F | 7.97 gm/cm3 at 20 °C | |||||||||
| Specific Gravity | 7.97 | 7.97 | |||||||||
| Electrical Conductivity | 8% IACS at 68 °F | 0.044 MegaSiemens/cm at 20 °C | |||||||||
| Thermal Conductivity | 20.5 Btu/sq ft/ft hr/°F at 68 °F | 35.5 W/m at 20 °C | |||||||||
| Coefficient of Thermal Expansion 68-572 | 12 · 10-6 per °F (68-572 °F) | 20.7 · 10-6 per °C (20-300 °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* | 1.24 | ||||||||||