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Copper Alloy No. C95900

Aluminum Bronze , CDA 959

ASTM B 505 , ASTM B 271

Chemical Composition % by weight

Element Nominal Minimum Maximum
Copper 80.2 Rem. Rem.
Lead - - -
Iron 4 3 5
Nickel (incl Co) - - .50
Aluminum 12.8 12 13.5
Manganese - - 1.5
Magnesium - - -
Silicon - - -
Zinc - - -
Tin - - -

Applications for Castings

Wear Plates, Bushings, Bearings

Mechanical Properties

M07 - As Continuous Cast

Hardness* Brinell Hardness (3000 kg load) 286
Tensile Strength** KSI 90
Yield Strength ** KSI (0.5% Ext. under load) 50
Elongation** % in 2 inch 5

**Test values are nominal approximations and depend on specimen size and orientation.

Physical Properties

Thermal Conductivity BTU/ (sq ft-ft-hr-F) 7
Specific Heat BTU/lb/F @ 68F .09
Thermal Expansion Per F from 68 F to 572 F .0000098
Density lb/cu in @ 68 F .260
Electrical Conductivity % IACS @ 68 F 3
Modulus of Elasticity KSI 18,000

*Volume basis

Fabrication Practices

Stress relieving temperature 600 F or 315 C
Time at temperature 1 hour per inch of section thickness
Machinability rating (Free Cutting Brass=100) 20
Suitability for being joined by: Soldering/Good
Brazing/Good
Oxyacetylene Welding/Not Recommended
Gas Shielded Arc Welding/Excellent
Coated Metal Arc Welding/Fair

The values listed above represent reasonable approximations suitable for general engineering use. Due to commercial variations in composition and to manufacturing limitations, they should not be used for specification purposes. See applicable A.S.T.M. specification references.