C96400 is the cast equivalent of 70/30 Cupro-Nickel. C964 shows good resistant to stress corrosion and is often used when an application will involve high-velocity seawater. UNS C96400 is often used in the production of fittings and flanges for shipboard application.
Marmetal stocks C964 Copper-Nickel in Castings.
Available Shapes for C96400 Copper Nickel 70/30:
Specifications for C964 Copper-Nickel
| ASTM | Military | |
| Centrifugal Cast | ASTM B369 | MIL-C-20159 |
| Sand Cast | ASTM B369 | |
| Continuous Cast | ASTM B505 | |
| Ingot | ASTM B30 |
Mechanical Properties for for C964 Copper-Nickel
| Casting | ||||
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Commercial
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| SIZE | TENSILE, KSI, MIN | YIELD@0.5%, KSI, MIN | Elong. % Min | |
| All Sizes | 60 | 32 | 20 |
Compositions for C964 Copper-Nickel
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COMMERCIAL
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| UNS No. | Copper | Nickel + Cobalt | Manganese | Lead | Iron | Silicon | Niobium | Phosphorus | Sulfur | Carbon | |
| C96400 | remainder | 28.0-32.0 | 1.5 max | 0.01 max | 0.25-1.5 | 1.0 max | 0.5-1.5 | 0.02 max | 0.02 max | 0.15 max |
Physical Properties for C964 Copper-Nickel
| Density @ 68o F | 0.323 lb/in3 |
| Melting Range | 2140-2260o F |
| Casting Yield | Low |
| Drossing | Medium |
| Machinability rating (C360 = 100) | 20 |
| Brazing | Excellent |
| Soldering | Excellent |
| Gas-shielded arc welding | Good |
| Oxy-acetylene welding | Not recommended |
| Coated metal-arc welding | Good |
Applications for C964 Copper-Nickel
| * Elbows |
| * Fittings |
| * Flanges |
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* Prpoeller Sleeves
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* Pump Bodies
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* Impellers
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| * Valves |