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C95400 Aluminum Bronze

C95400 Aluminum Bronze is the most common alloy in the cast aluminum bronze family. Used in many heavy duty applications, it is recommended for high load, high wear applications that require tensile strength, good ductility, weldability or exceptional resistance to fatigue and deformation in overload situations. In addition to good anti-frictional characteristics, the metal also exhibits low rates of scaling in atmospheric conditions, resistance to corrosion in sea water, low oxidation rates at higher temperatures and low reactivity with combustion exhaust byproducts.

Typical Applications


Weld Guns


Nuts, Large Hold Down Screws


Bushings, Worm Gears, High Strength Clamps, Gears, Valves, Pickling Hooks, Bearing Segments for the Steel Industry, Spur Gears, Heavily Loaded Worm Gears, Bearings, Pawl, Valve Bodies, Landing Gear Parts, Machine Parts, Pressure Blocks for the Steel Industry, Valve Seats, Valve Guides, Pump Parts, Wear Plates, Gibs, Slides, Worm Wheels, Plungers


Ship Building, Covers for Marine Hardware


Government Fittings

Chemical Composition

Cu% Sn% Pb% Zn% Fe% Ni% Sb% P% S% AI% Mn% Si%
83.00 Min N/A N/A N/A 3.00-
1.5 N/A N/A N/A 10.00-
0.50 N/A

Mechanical Properties

Mechanical - Aluminum Bronze
Tensile Strength, min 85 ksi 586 MPa
Yield Strength @ .5% ext under load min 32 ksi 221 MPa
Elongation in 2 in. or 50 mm min, % 12
Brinell Hardness 170 typical Bhn (3000kg)
Machinability Rating 60%

Physical Properties

  US Customary Metric
Melting Point-Liquidus 1900 F 1038 C
Melting Point-Solidus 1880 F 1027 C
Density 0.269 lb/in3
@ 68 F
7.45 gm/cm3
@ 20 C
Specific Gravity 7.450 7.45
Electrical Resistivity 80.20 ohms-cmil/ft
@ 68 F
13.33 microhm-cm
@ 20 C
Electrical Conductivity 130 %IACS
@ 68 F
0.075 MegaSiemens/
cm @ 20 C
Thermal Conductivity 33.90 Btu ft/
(hr ft2 oF) @ 68 F
58.7 W/m oK @ 20 C
Coefficient of
Thermal Expansion
90 10-6 per oF
(68-572 F)
16.2 10-6 per oC
(20-300 C)
Specific Heat Capacity 0.10 Btu/lb/oF
@ 68 F
419.0 J/kg oK
@ 293 K
Modulus of Elasticity
in Tension
15500 ksi 107000 MPa
Magnetic Permeability* 1.270 1.27
*Field Strength 16 kA/m

Fabrication Properties

Joining Technique Suitability
Soldering Good
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Good
Coated Metal Arc Welding Good

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