90/10 CU/NI (C70600)

Specifications

The following specifications cover Copper Alloys C70600

Property Results

Related Metals:

• 90-10 Cupro Nickel
• Deleted Alloy 11
• CN102
• Copper Nickel, C706

Chemistry Data : 

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.

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 “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”.

Forging		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.

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 1100 and 1500 F.

Physical Data : 

Density (lb / cu. in.)	0.323
Electrical Resistivity (microhm-cm (at 68 Deg F))	112.9
Modulus of Elasticity Tension	18000