Copper Alloy C71500

 

Principal Design Features

Copper Nickels (Copper-Nickel), Copper-Nickel, 30%. 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.

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Applications

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.

Machinability

The machinability rating of this alloy is 20. (Where Alloy 360 FC Brass is 100).

Welding

Soldering of this alloy is rated as "excellent", brazing is rated as "excellent", oxyacetylene welding is rated as "good", gas shielded arc welding is rated as "excellent", coated metal arc welding is rated as "excellent", spot welding is rated as "excellent", seam welding is rated as "excellent", and butt welding is rated as "excellent".

Forging

The hot forgeability rating of this alloy is unknown. (Forging Brass=100). The recommended hot working temperature for this alloy is between 1700 and 1900 F.

Hot Working

This alloy's capacity for being hot formed is rated as "good".

Cold Working

The capacity for cold working this alloy is rated as "good".

Annealing

The annealing temperature for this alloy is between 1200 and 1500 F.

Density: 0.323

Electrical Resistivity: 225

Melting Point: 2140

MoETensile: 22000

 

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