C85400 is a high-performance silicon brass casting alloy bar renowned for its exceptional comprehensive mechanical properties. Its most notable features are its exceptional strength, hardness, and exceptional wear resistance, derived from the hard silicide particles formed within its microstructure. The alloy also exhibits excellent casting fluidity, enabling the production of complex, dimensionally precise, and dense castings.
Thanks to these properties, C85400 copper bar is often used in the manufacture of wear-resistant parts operating under heavy loads and high speeds. It is a key material for gears, worm gears, bearings, pump bodies, valves, and various heavy machinery components. It is widely used in shipbuilding, heavy industry, the chemical industry, and high-pressure valves, demonstrating outstanding reliability and long service life in demanding environments.
| Property (& Unit) | Value | Condition / Note |
|---|---|---|
| Tensile Strength (MPa) | 480 – 550 | As Cast |
| Yield Strength (0.5% Ext) (MPa) | 170 – 220 | As Cast |
| Elongation (% in 2″) | 15 – 25 | As Cast |
| Hardness (Brinell) | 85 – 100 HB | As Cast |
| Modulus of Elasticity (GPa) | 96 | In Tension |
| Shear Modulus (GPa) | 36 | |
| Fatigue Strength (MPa) | ~ 125 |
