Copper Alloy C95500 CDA 955 Bronze Alloy
Copper Alloy No. C95500
Aluminum Bronze 9D, CDA 955 Nickel Aluminum Bronze , Grade D
ASTM B 505 , ASTM B 271
Chemical Composition % by weight
Element Nominal Minimum Maximum Aluminum 11 10 11.5 Copper 81 78 - Iron 4 3 5 Manganese - - 3.5 Nickel 4 3 5.5
Applications
Valve guides and seats in aircraft engines, corrosion resistant parts, bearings, bushings, gears, worm gears, pickling hooks and baskets, agitators.
M07 - As Continuous Cast
Hardness* Brinell Hardness (3000 kg load) 190 Tensile Strength** KSI 95 min Yield Strength ** KSI (0.5% Ext. under load) 42 min Elongation** % in 2 inch 10 **Test values are nominal approximations and depend on specimen size and orientation.
Physical Properties
Thermal Conductivity BTU/ (sq ft-ft-hr-F) 24.2 Specific Heat BTU/lb/ºF @ 68F .10 Thermal Expansion Per °F from 68 F to 572 F .000009 Density lb/cu in @ 68 F .272 Electrical Conductivity* (Annealed) % IACS @ 68 F 8.5 Modulus of Elasticity KSI 16,000 *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 1585-1635 F or 860-890 C Time at temperature 1 hour per inch of section thickness Quenching medium Water or oil quench 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) 50 Suitability for being joined by: Soldering/Good Brazing/Fair Oxyacetylene Welding/Not Recommended Carbon Arc Welding/Poor Gas Shielded Arc Welding/Good Coated Metal Arc Welding/Good