Copper Alloy No. C63200

Aluminum Bronze , ASTM B150 CDA 632

Chemical Composition % by weight

Element	Nominal	Minimum	Maximum
Copper	82	Rem.	Rem.
Lead	-	-	.02
Iron*	4	3	5
Aluminum	9	8.5	9.5
Manganese	-	-	3.5
Silicon	-	-	.10
Nickel (incl. Co)*	5	4	5.5

*Iron content shall not exceed nickel content. 

Applications

Marine: Nuts, bolts, structural pump parts, shafting.

Industrial: Corrosion resistant articles.

Common Fabrication Processes

Hot forming, machining, welding.

Hardness*	Rockwell B Scales	96
Tensile Strength**	KSI	105
Yield Strength** (.05% EAU)	KSI	53
Elongation**	% in 2 inch	22

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

Physical Properties

Thermal Conductivity	BTU/ (sq ft-ft-hr-F)	20
Specific Heat	BTU/lb/ºF @ 68F	.105
Thermal Expansion	Per °F from 68 F to 572 F	.0000090
Density	lb/cu in @ 68 F	.276
Electrical Conductivity* (Annealed)	% IACS @ 68 F	7
Modulus of Elasticity (Tension)	KSI	17,000

*Volume basis

Capacity for being cold worked	Fair
Capacity for being hot formed	Good
Machinability Rating (Free Cutting Brass=100)	30
Suitability for being joined by:	Soldering/Fair
	Brazing/Fair
	Oxyacetylene Welding/Not Recommended
	Gas Shielded Arc Welding/Excellent
	Coated Metal Arc Welding/Good
Resistance Welding	Spot/Good
	Seam/Fair
	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.