Special Bronzes
| Name | Equivalents | % | Cu | Sn | Pb | Zn | Ni | Sb | Al | Fe | Mn | P | S | Si | As | Mg | Others |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CuSn20CuSn20Material hardness tenacious. Manufacture of bells, etc. | ASTM C91100 | min | 77,0 | 19,0 | <0,25 | <0,25 | <0,5 | <1,8 | <0,005 | <0,25 | - | <1,0 | <0,05 | <0,005 | - | - | <0,6 |
| max | 82,0 | 21,0 | <0,25 | <0,25 | <0,5 | <1,8 | <0,01 | <0,25 | - | <1,0 | <0,05 | <0,005 | - | - | <0,6 | ||
| CB484K CuSn12Ni2-B CB484K CuSn12Ni2-BMaterial hardness tenacious. Manufacture of bells, etc. | ASTM C91700, BS CT2 | min | 84,0 | 11,3 | <0,2 | <0,3 | 1,5 | <0,05 | <0,01 | <0,15 | <0,1 | <0,05 | <0,04 | <0,01 | - | - | - |
| max | 87,0 | 13,0 | <0,2 | <0,3 | 2,4 | <0,05 | <0,01 | <0,15 | <0,1 | <0,05 | <0,04 | <0,01 | - | - | - | ||
| CB483K CuSn12-B CB483K CuSn12-BTenacious hardness, good resistance to wear and seawater. Skid plates, etc. | ASTM C90800, BS PB2, DS 5465 | min | 85,8 | 11,2 | <0,6 | <0,4 | <2,0 | <0,15 | <0,01 | <0,15 | <0,2 | <0,2 | <0,05 | <0,01 | - | - | - |
| max | 88,5 | 13,0 | <0,6 | <0,4 | <2,0- | <0,15 | <0,01 | <0,15 | <0,2 | <0,2 | <0,05 | <0,01 | - | - | - | ||
| CB480K CuSn10-B CB480K CuSn10-BTenacious and resistant to corrosion and sea water. Water turbines, pump boxes, etc. | ASTM C90700, BS CT1, DS 5443 | min | 88,5 | 9,3 | <0,8 | <0,5 | <1,8 | <0,15 | <0,01 | <0,15 | <0,1 | <0,05 | <0,04 | <0,01 | - | - | - |
| max | 90,5 | 11,0 | <0,8 | <0,5 | <1,8 | <0,15 | <0,01 | <0,15 | <0,1 | <0,05 | <0,04 | <0,01 | - | - | - | ||
RG-10RG-10Hard, resistant to sea water. Friction bearing shells, spiral wheels, axles fittings for ships. | ASTM C92600, DS 5456 | min | 86,0 | 9,2 | <1,3 | 1,0 | <1,8 | <0,25 | <0,01 | <0,2 | <0,1 | <0,03 | <0,06 | <0,01 | <0,1 | - | <0,4 |
| max | 88,5 | 11,0 | <1,3 | 3,0 | <1,8 | <0,25 | <0,01 | <0,2 | <0,1 | <0,03 | <0,06 | <0,01 | <0,1 | - | <0,4 |
Tin bronze alloys are typically used in gears, high strength bushings and bearing applications where high strength and low speeds and have loads are present. Other applications are pump impellers, piston rings, valve bodies, steam fittings,..