C95400 Aluminum Bronze Castings

Copper Alloy No. C95400

Aluminum Bronze 9C , CDA 954 , CuAl10Fe

ASTM B 505 , ASTM B 271

Chemical Composition % by weight

Element Nominal Minimum Maximum

Aluminum 11 10 11.5

Copper 85 83 -

Iron 4 3 5

Manganese - - .50

Nickel - - 2.5

Application for Castings

Bearings, gears, worm gears, bushings, wear plate, valve seats and guides, pickling hooks.

Mechanical Properties (as cast)

M07 - As Continuous Cast

Hardness* Brinell Hardness (3000 kg load) 170

Tensile Strength** KSI 85 min

Yield Strength ** KSI (0.5% Ext. under load) 32 min

Elongation** % in 2 inch 10 min

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

Physical Properties

Thermal Conductivity BTU/ (sq ft-ft-hr-F) 33.9

Specific Heat BTU/lb/慚 @ 68F .10

Thermal Expansion Per 蚌 from 68 F to 572 F .000009

Density lb/cu in @ 68 F .269

Electrical Conductivity* (Annealed) % IACS @ 68 F 13

Modulus of Elasticity KSI 15,500

*Volume basis

Fabrication Practices

Stress relieving temperature 600 F or 316 C

Time at temperature 1 hour per inch of section thickness

Responds to heat treatment Yes

Solution heat treating temperature 1600-1675 F or 870-910 C

Time at temperature 1 hour per inch of section thickness

Quenching medium Water

Annealing temperature 1150-1225 F or 620-660 C

Time at temperature 1 hour per inch of section thickness

Machinability rating (Free Cutting Brass=100) 60

Suitability for being joined by: Soldering/Good

Brazing/Good

Oxyacetylene Welding/Not Recommended

Carbon Arc Welding/Fair

Gas Shielded Arc Welding/Very Good

Coated Metal Arc Welding/Good

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.