C85200 copper bar is a high-performance lead brass alloy material, which is widely favored in the industrial field for its excellent comprehensive performance. The material through the precise proportion of copper, lead and other trace elements, both high strength, high hardness and excellent fatigue characteristics, mechanical properties comparable to special steel, while retaining the copper alloy’s inherent advantages of thermal conductivity, especially suitable for the need to take into account the structural strength and energy transfer efficiency of the application scenario.
Another notable feature is its excellent process adaptability, balanced hot and cold processing performance and stability, can easily cope with turning, stamping, forging and other complex processing needs. In addition, the dense oxide layer formed on the surface of the material gives it excellent corrosion resistance and long-term stability in humid environments or chemical media, making it an ideal choice for key components such as electronic connectors, precision gears and hydraulic valve bodies.
| Properties | Metric | Imperial |
|---|---|---|
| Hardness, Brinell | 45 | 45 |
| Tensile strength | 260 MPa | 37700 psi |
| Yield strength (@strain 0.500%) | 90.0 MPa | 13100 psi |
| Elongation at break (In 50 mm) | 35.00% | 35.00% |
| Machinability (UNS C36000 (free-cutting brass) = 100) | 80 | 80 |
| Poisson’s ratio | 0.34 | 0.34 |
| Elastic modulus | 117 GPa | 16969 ksi |
