C 954 Aluminum Bronze (UNS C95400)


C 954 aluminum bronze is the most popular all purpose aluminum bronze alloy. It provides high yield and tensile strength, good ductility, weldability and machinability.  C 954 has excellent corrosion resistance and exceptional resistance to wear, fatigue and deformation under shock loading.  Typical applications include bearings, gears, valve components, wear plate and wear strips, bearing brushes and landing gear components on aircrafts, engine components, underwater fasteners in naval architecture, ship propellers, general sea water related service, water supply industry, oil and petrochemical industries, specialized anti-corrosive applications and certain structural building applications


Chemical Composition

Chemical Composition (wt%) limits as specified in ASTM B505*

Copper 81.0-85.0 Nickel 0.35
Aluminum 6.3-7.5 Manganese 1.50
Iron 6.0-8.0    

*Maximum, unless range is indicated

Physical Properties

Physical properties for C 954 Bronze

Density, lb/in3 0.269
Modulus of Elasticity, psi 15,500
Coefficient of Thermal Expansion, 68-212˚F, /˚F 9 x 10-6
Thermal Conductivity, Btu/ft hr ˚F 33.9
Specific Heat, Btu/lb ˚F 0.10
Electrical Resistivity, Microhm-in 5.2

Mechanical Properties

Mechanical property requirements as specified in ASTM B505

Yield Strength, min (ksi) 32
Tensile Strength, min (ksi) 85
Elongation, min (%) 12


Typical standards for C 954 Bronze