Brass Copper Castings India
Nickel Aluminum Bronze C95500


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.

Mechanical Properties (as cast)

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