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Cast Grade: C90300

OVERVIEW: Copper-tin alloys with high tensile, yield and compressive strength as well as wear resistance.

TYPICAL USES: Bearings, bushings, gears, hydraulic parts, piston rings, steam fittings, steel mill nuts, worm gears.

MetalTek Grade: NAVY G

Similar Specifications

Cast UNS: C90300

Cast Grade: C90300

Cast ASTM: B271, B584

Military / AMS: MIL-C-15345-8

Other: SAE 620 (Cross reference only; spec discontinued)

Typical Chemical Composition (% by wt.)

Cu: 88

Sn: 8

Zn: 4

Minimum Mechanical Properties

Brinell 500 KG Typical: 80

Tensile, ksi: 40

Tensile, MPa: 275

Yield, ksi: 18

Yield, MPa: 125

Elongation %: 20