COPPER & COPPER ALLOY PRODUCTS
WROUGHT COPPER ALLOYS
CONTINUOUS CAST COPPER ALLOYS
CENTRIFUGAL CAST COPPER ALLOYS
MADE TO ORDER COPPER ALLOYS
FINISHED MACHINE PARTS
HYDRAULIC & PNEUMATIC PARTS
CONTINUOUS CAST PRODUCTION
COPPER ALLOY DATABASE
CONTINUOUS CAST IRON PRODUCTS
QUALITY CONTROL PROCEDURES
NEW PRODUCTS & IMPROVEMENTS
red.gif (248 bytes) ONLINE INQUIRY FORM

Copper Alloy No. C62400

Aluminum Bronze , ASTM B 150 CDA 624 

Chemical Composition % by weight

Element Nominal Minimum Maximum
Copper 86 Rem. Rem.
Iron 3 2 4.5
Tin - - .20
Aluminum 11 10 11.5
Manganese - - .30
Silicon - - .25

Applications

Bushings, gears, cams, wear plates, nuts, drift pins, tie rods.

Common Fabrication Processes

Hot forging, hot bending, machining.

Mechanical Properties

Typical for 1" Rod Half Hard (10%) Temper

Hardness* Rockwell B Scales 92
Tensile Strength** KSI 105
Yield Strength** (.5% EAU) KSI 52
Elongation** % in 2 inch 14

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

Physical Properties

Thermal Conductivity BTU/ (sq ft-ft-hr-F) 34
Specific Heat BTU/lb/F @ 68F .09
Thermal Expansion Per F from 68 F to 572 F .0000090
Density lb/cu in @ 68 F .269
Electrical Conductivity* (Annealed) % IACS @ 68 F 12
Modulus of Elasticity (Tension) KSI 17,000

*Volume basis

Fabrication Properties

Capacity for being cold worked Poor
Capacity for being hot formed Excellent
Machinability Rating (Free Cutting Brass=100) 50
Suitability for being joined by: Soldering/Not Recommended
Brazing/Fair
Oxyacetylene Welding/Not Recommended
Gas Shielded Arc Welding/Good
Coated Metal Arc Welding/Good
Resistance Welding Spot/Good
Seam/Good
Butt/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.