Reference guide

Continuous cast

Aluminum bronze, such as C95200, 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 C952. All of the aluminum bronzes can be heat treated, further increasing tensile strengths.


Product description: Aluminum bronze
Solids: 1/2" to 9" O.D.
Tubes: 1 1/8" to 9" O.D.*
Rectangles: Up to 15"
Standard lengths: 144"
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

 *Consult mill for wall thickness

Typical uses

Electrical: Electrical hardware
Fasteners: Nuts
Industrial: Acid-resistant pumps, bearing liners, bearings, bushings, gears, high-strength clamps, hot mill guides, hydrant parts, large gear parts, mild alkali applications, pickling equipment, pickling tanks, plungers, pump parts, pump rods, thrust pads, valve bodies, valve seats, valves, wear plates, welding jaws, worm wheels, worms
Marine: Covers for marine hardware, marine engines, marine hardware, propellers
Ordnance: Gun mountings, gun slides

Similar or equivalent specification

CDA ASTM SAE AMS Federal Military Other
C95200 B505
  QQ-C-390, G6;
QQ-B-671, Class 1
MIL-B-16033, Class 1 Aluminum bronze 9A

Chemical composition

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

Note: Cu + sum of named elements, 99.0% min. Unless otherwise noted, single values represent maximums.


Copper alloy UNS No. Machinability rating Density (lb/in3 at 68 °F)
C95200 20 0.276

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  
68 469 26 179 20 125  

Physical properties

  US Customary Metric
Physical properties provided by CDA

*Field strength 16000 A/m (200 Oersteds)
Melting point - liquidus 1913 °F 1045 °C
Melting point - solidus 1907 °F 1042 °C
Density 0.276 lb/in3 at 68 °F 7.64 gm/cm3 at 20 °C
Specific gravity 7.64 7.64
Electrical conductivity 11% IACS at 68 °F 0.064 MegaSiemens/cm at 20 °C
Thermal conductivity 29.1 Btu/sq ft/ft hr/°F at 68 °F 50.4 W/m at 20 °C
Coefficient of thermal expansion 68-572 9 · 10-6 per °F (68-572 °F) 15.5 · 10-6 per °C (20-300 °C)
Specific heat capacity 0.09 Btu/lb/°F at 68 °F 377.1 J/kg at 20 °C
Modulus of elasticity in tension 15000 ksi 103400 MPa
Magnetic Permeability* 1.1 1.1
Poisson's Ratio 0.31 0.31

Fabrication properties

Fabrication properties provided by CDA
Technique Suitability
Soldering Good
Brazing Good
Oxyacetylene welding Not recommended
Gas shielded arc welding Excellent
Coated metal arc welding Good
Machinability rating 20

Thermal properties

Thermal properties provided by CDA
*Temperature is measured in fahrenheit.   **For stress relief, solution treatment and annealing - time is measured in hours/inch of thickness. For precipitation heat treatment - time is measured in hours.
Treatment Value* Time**
Stress relief 600  
Solution treatment   0

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