Reference guide

Continuous cast • GreenAlloys™

Aluminum bronze is the highest strength standard copper-based alloy. Wieland Concast produces C95400, C95500, AMS 4880-C95510, and C95900 aluminum bronze alloys as Standard-stocked products in common sizes of rounds, tubes, and rectangles. Aluminum in conjunction with iron and nickel acts as a strengthener in these alloys including C954. All of the aluminum bronzes can be heat treated, further increasing tensile strengths. More»


Product description: Aluminum bronze
Solids: 1/2" to 10" O.D.
Tubes: 1 1/8" to 12" O.D.*
Rectangles: Up to 15"
Standard lengths: 24"**
Shape/Form: Semi-finished, mill stock or near-net shapes, anode, bar stock, billet/bloom, squares, hex, plate, profile or structural shape, flats/rectangular bar
Compliance: C95400HT is compliant with key legislation including (1) Federal Safe Drinking Water Act - SDWA, (2) S. 3874 Federal Reduction of Lead in Drinking Water Act, (3) California AB1953, and (4) Vermont Act 193

 *Consult mill for wall thickness 
**Consult mill for other lengths

Typical uses

Automotive: Weld guns
Fasteners: Large hold-down screws, nuts
Industrial: Bearing segments for the steel industry, bearings, bushings, gears, heavily loaded worm gears, high-strength clamps, landing gear parts, machine parts, pawl, pickling hooks, pressure blocks for the steel industry, pump parts, spur gears, valve bodies, valve guides, valve seats, valves, worm gears
Marine: Covers for marine hardware, ship building
Ordnance: Government fittings

Note: Also available in non-heat-treated condition.

Similar or equivalent specification

CDA ASTM SAE AMS Federal Military Other
C95400 B505
  QQ-C-390, G5;
QQ-B-671, Class 3
MIL-B-16033, Class 3 Aluminum bronze 9C

Chemical composition

Cu% Fe% Ni%1 Al% Mn%
Chemical composition according to ASTM B505/B505M-23

1Ni value includes Co.
Note: Cu + sum of named elements, 99.5% min. Unless otherwise noted, single values represent maximums.


Note: HT = heat treated.
Copper alloy UNS No. Machinability rating Density (lb/cu in at 68 °F)
C95400HT 60 0.269

Mechanical properties

Mechanical properties according to ASTM B505/B505M-23
Tensile strength, min Yield strength, at 0.5% extension under load, min Elongation, in 2 in. or 50 mm min Brinell hardness (3000 kg load) Remarks
ksi MPa ksi MPa % typical BHN  
95 655 45 310 10 177 Heat treated

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