January 25, 2019

Nickel Aluminum Bronze C95800

C95800 Nickel Aluminum Bronze (NiAlBr) is the highest strength standard copper based alloy. All aluminum bronzes can be heat treated, further increasing tensile strengths. C95800 is Copper Alloy UNS number in ASTM B148 and ASMT B505 for casting purpose. This material is mostly suitable for large size castings, particularly high in strength, and good performances in corrosion resistance and abrasion resistance.

ASTM B148 -18 Standard Specifications for Aluminum-Bronze Sand Castings

ASTM B505 / B505M – 18 Standard Specification for Copper Alloy Continuous Castings


Pump Impeller Sand Casting

Nickel Aluminum Bronze C95800 Casting Chemical Composition Requirements and Mechanical Property:

Copper: 79.0 min
Aluminum: 8.5-9.5
Iron: 3.5-4.5
Manganese: 0.8-1.5
Nickel: 4.0-5.0
Silicon: 0.10 max
Lead: 0.03 max
Iron content shall not exceed the nickel content
As cast or temper annealed condition:

Tensile Strength: 85 ksi(585 Mpa)
Yield Strength: 35 ksi (240 Mpa) min
Elongation in 2in. or 50.8mm: 15%min
Reduction of area: 35% min
Hardness (3000kg load): not required.


Nickel Aluminum Bronze C95800 Casting Heat treatment process:

For better carrion resistance in seawater application, castings in copper alloy UNS No C95800 may be given a temper anneal heat treatment at 1250+/-50°F [675+/-10°C] for 6 hour minimum, generally followed by air cooling. Cooling shall be by the fastest means possible that will not cause excessive distortion or cracking, propeller castings shall be exempt from this requirement

Corrosion inhibiting heat treatment is option.

C95800 Similar or Equivalent Bronze Grades www.castingquality.com

GB/T 1176 Grade ZCuAl9Fe4Ni4Mn2
BS1400 Grade AB2
DIN 1714 Grade GB-CuAl9Ni
JIS H5114 Grade AlBC3


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Steel TypeStandardCountry CodeSi(%)Al(%)Mn(%)Pb(%)Fe(%)Ni(%)Zn(%)

Nickel Aluminum Bronze C95800 Application:

Machinery parts.

Valve body, valve disc.

Bushing, Gears.

Pump propeller blades, casing, section bell, Impeller, Pump Bowl.

Wear Plates.
Pipe Fittings.

Marine hardware, ship propeller.

Chemical Industry.


Manufacture Process in Casting Quality: Sand Casting, Precision Lost Wax Investment Casting.

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