Rg7 Lagerbuchse RG7 is equivalent to C93200, corresponding to the domestic brand CuSn7Zn4Pb7, belonging to high lead copper.
DIN 1705 Copper-tin and copper-tin-zinc casting alloys(Cast tin bronze and gunmetal); Casting Bushings
tin bronze bushing red bronze or leaded gunmetal bearings
| % min. | % máx | |
|---|---|---|
| Cua | 81,0 | 85,0b |
| Ni | 2,0 | |
| P | 0,10 | |
| Pb | 5,0 | 8,0 |
| Sn | 6,0b | 8,0 |
| Zn | 2,0 | 5,0 |
| Al | 0,01 | |
| Fe | 0,2 | |
| S | 0,10 | |
| Sb | 0,3 | |
| Si | 0,01 |