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Copper Alloy No. C61400

Aluminum Bronze , ASTM B 171 CDA 614

Chemical Composition % by weight

Element Nominal Minimum Maximum
Copper 91 Rem. Rem.
Lead - - .01
Iron 2 1.5 3.5
Zinc - - .20
Aluminum 7 6 8
Manganese - - 1
Phosphorus - - .015

Applications

Nuts, bolts, corrosion resistant vessels, tanks, components, machine parts, piping systems, heat exchanger tube, marine fasteners, munitions blending chambers.

Common Fabrication Processes

Blanking, drawing, forming and bending, cold heading, roll threading, welding. 

Mechanical Properties

Typical for 1" Rod Hard (25%) Temper

Hardness* Rockwell B Scales 90
Tensile Strength** KSI 82
Yield Strength** (.5% EAU) KSI 55
Elongation** % in 2 inch 35

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

Physical Properties

Thermal Conductivity BTU/ (sq ft-ft-hr-F) 39
Specific Heat BTU/lb/F @ 68F .09
Thermal Expansion Per F from 68 F to 572 F .0000090
Density lb/cu in @ 68 F .285
Electrical Conductivity* (Annealed) % IACS @ 68 F 14
Modulus of Elasticity (Tension) KSI 17,000

*Volume basis

Fabrication Properties

Capacity for being cold worked Good
Capacity for being hot formed Good
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.