UNS C81700, Copper Casting Alloy

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UNS C81700, Copper Casting Alloy
Categories:	Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy
Material Notes:	Casting methods recommended for this alloy: Centrifugal, Continuous, Investment, Permanent Mold, Plaster, and Sand. Applications: Electrical and/or thermal conductors used as structural members where strength and hardness greater than that of UNS C8100-8110 are required. Also used in place of UNS C81500 where electrical and or thermal conductivities can be sacrificed for hardness and strength.Inactive per the Copper Development Association.
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Physical Properties	Metric	English	Comments

Density	8.85 g/cc	0.320 lb/in³	Estimated

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	217	217	3000 kg; heat treated
Tensile Strength, Ultimate	634 MPa	92000 psi	heat treated
Tensile Strength, Yield	469 MPa	68000 psi	heat treated
Elongation at Break	8.0 %	8.0 %	heat treated
Machinability	30 %	30 %	UNS C36000 (free-cutting brass) = 100%

Component Elements Properties	Metric	English	Comments
Beryllium, Be	0.40 %	0.40 %
Cobalt, Co	0.90 %	0.90 %
Copper, Cu	>= 94.25 %	>= 94.25 %
Nickel, Ni	0.90 %	0.90 %
Silver, Ag	1.0 %	1.0 %

References for this datasheet.

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MC81700b1 / 11860

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