Copper Alloy C70600
Principal Design Features
Copper Nickels (Copper-Nickel), Copper-Nickel, (90-10). Excellent corrosion resistance, especially in marine environments. Moderately high strength, good creep resistance at elevated temperatures. Properties generally increase with nickel content. Relatively high in cost compared with copper-aluminum and other alloys with similar mechanical properties.
Copper-nickels are mainly used for seawater service as forged and machined valve and pump components, fittings and hardware. Used where high corrosion resistance is required and where concern over chloride stress-corrosion cracking prevents use of stainless steels.
The machinability rating of this alloy is 20. (Where Alloy 360 FC Brass is 100).
Soldering of this alloy is rated as “excellent”, brazing is rated as “excellent”, oxyacetylene welding is rated as “fair”, gas shielded arc welding is rated as “excellent”, coated metal arc welding is rated as “good”, spot welding is rated as “good”, seam welding is rated as “good”, and butt welding is rated as “excellent”.
The hot forgeability rating of this alloy is unknown. (Forging Brass=100). The recommended hot working temperature for this alloy is between 1550 and 1750 F.
This alloy’s capacity for being hot formed is rated as “good”.
The capacity for cold working this alloy is rated as “good”.
The annealing temperature for this alloy is between 1100 and 1500 F.
Electrical Resistivity: 112.9
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