Alongside our special alloy silicon tombac, we also cast brass and pure copper in pressure die and permanent mould casting.
Pressure die-casting is suited in particular for thin-walled components that require high surface reproduction accuracy. Permanent mould casting is generally used for bulky components with comparatively large casting weights.
| Silicon tombac | Brass | Copper | |
|---|---|---|---|
| Identifier DIN EN 1982 | CuZn16Si4-C | CuZn38Al-C | Cu-C |
| Tensile strength Rm in N/mm² | 500 | 380 | 150 |
| Yield point Rp 0,2 in N/mm² | 300 | 130 | 40 |
| Elongation at break A in % | 8 | 30 | 25 |
| Hardness in HB | 130 | 75 | 40 |
| Electric conductivity in MS/m | 3 | 12 | >50 |
| Density in kg/dm³ | 8,3 | 8,3 | 8,9 |
| Melting range in °C | 950-1000 | 900-950 | 1083 |
