Characteristic
CuSn8 is a solid solution strengthened copper alloy (bronze) with 8% tin. The high tin content
results in high strength and good spring properties at an adequate conductivity. The alloy is
wear-resistant, has very good corrosion resistance and can be readily soldered. Moreover
CuSn8 has good sliding properties. Fields of application are stamped parts, connectors, spring
contacts, springs, bushings and bearings, metal hose, the paper industry, ship and apparatus
manufacturing as well as electrical and mechanical engineering.
Similar or Equivalent Specifications
| UNS | ASTM | SAE | AMS | Federal | Military | Other |
| C52100 | B104 |
Chemical Composition
| Cu | Sn | p | Zn | Ni | Fe | Pb | |
| Min | – | 7.5 | 0.01 | – | – | – | – |
| Max | – | 8.5 | 0.4 | 0.2 | 0.2 | 0.1 | 0.02 |
Mechanical Properties
| Rm | Tensile strength min. | 370 N/mm2 |
| Rp0.2 | Proof Strength min. | 300 N/mm2 |
| A(50mm) | Elongation min. | 50% |
| HB | Brinell hardness min. | 90 HBW |