Cupral 4® Aluminum Bronze
Cupral 4® Low Hardness
Aluminium Bronze
Cupral 4 aluminum bronze has very good sliding properties of hard materials.
Abrasion resistance is high.
Remarkable because of its hardness and wear resistance together with very good sliding characteristics.
High pressure resistance.
Cupral 4 Aluminium Manganese Bronze
Area of Application
Wearing parts, wear-resistant skids
Bending tools, flash patterns
Tube end holding jaws
Tapered wedges
Chemical Composition and Material Number
Code: 9C, C954, AMS 4871, AMS 4873, C95200, C95400, C62300, CC331G, ASTM B271, ASTM B-505, CuAl10Fe, CuAl10Fe2, CuAlFe3, CuAl10Fe3
Aluminium |
Iron |
Manganese |
Other |
Copper |
Al |
Fe |
Mn |
Max |
Cu |
12.5 - 13.5 |
3.5 - 5.0 |
max. 2 |
1 |
Remaining |
Heat Treatment: It is not necessary. If there is intensive machining, stress relief at 380 °C for 4 hours is recommended.
Mechanical Properties
Hardness |
270 - 320 |
HB |
Tensile Strength |
700 - 800 |
N/mm2 |
Yield Strength |
350 - 450 |
N/mm2 |
Moduls of Elasticity (20°C) |
120 |
GPa |
Elogation L=5D |
1 |
% |
Compressive Strength |
1050 - 1200 |
Mpa |
Physical Properties
Electrical Conductivity |
5 |
% |
Thermal Expansion Coefficient |
16 |
1/K * 10-6 |
Thermal Conductivity (20°C) |
65 |
W/mK |
Density |
7.25 |
g/cm3 |
Special Information
Continuous cast products of rods, sand castings, centrifugal casting, forging , alloying and casting products according to the picture and special composition for Aerospace Industry, Automotive Manufacturing and Manufacturing Industry.
