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C63000 Bronze, Nickel Aluminum Bronze,
AMS 4640, CDA 630 |
Chemical Properties -- C63000 / Nickel Aluminum Bronze / AMS 4640
Element |
Nominal % |
Minimum % |
Maximum % |
| Aluminum |
10 |
9 |
11 |
| Antimony |
- |
- |
- |
| Copper |
82 |
Rem |
Rem |
| Iron |
3 |
2 |
4 |
| Manganese |
- |
- |
1.5 |
| Nickel |
5 |
4 |
5.5 |
| Silicon |
- |
- |
.25 |
| Sulfur |
- |
- |
- |
| Tin |
- |
- |
.20 |
| Zinc |
- |
- |
.30 |
Mechanical Properties -- C63000 / Nickel Aluminum Bronze / AMS 4640
| Typical 1" Rod Half-Hard |
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| Tensile Strength: |
Minimum 118 ksi |
| Yield Strength: |
Minimum 75 ksi - 0.5% Ext. under load |
| Elongation: |
Minimum 15% in 2 in. |
| Rockwell B |
98 |
Physical Properties -- C63000 / Nickel Aluminum Bronze / AMS 4640
| Property |
US Customary |
| Melting Point - Liquidus |
1930 F |
| Melting Point - Solidus |
1895 F |
| Density |
0.274 lb/cu in @ 68 F |
| Specific Gravity |
7.58 |
| Specific Heat Capacity |
0.09 Btu/lb/oF at 68 F |
| Coefficient of Thermal Expansion |
9.0 ·10-6 per oF (68-212 F) |
| Thermal Conductivity |
22.6 Btu · ft/(hr · ft2·oF)at 68F |
| Electrical Conductivity |
7 %IACS @ 68 F |
| Electrical Resistivity |
116 ohms-cmil/ft @ 68 F |
| Modulas of Elasticity in Tension |
17,500 ksi |
Fabrication Properties -- C63000 / Nickel Aluminum Bronze / AMS 4640
| Joining Methods |
Suitability |
| Soldering |
Not Recommended |
| Brazing |
Fair |
| Oxyacetylene Welding |
Not Recommended |
| Gas Shielded Arc Welding |
Good |
| Coated Metal Arc Welding |
Good |
| Machinability (C360 Brass =100) |
30 |
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