Lead Bronzes
| Name | Equivalents | % | Cu | Sn | Pb | Zn | Ni | Sb | Al | Fe | Mn | P | S | Si | As | Mg | Others |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CB495K CuSn10Pb10-B CuSn10Pb10-BResistant to corrosion and wear. High pressure friction bearing surface, combined casting material. | ASTM C93700, BS LB2, DS 5640 | min | 78,0 | 9,2 | 8,2 | <2,0 | <2,0 | <0,5 | <0,01 | <0,2 | <0,2 | <0,1 | <0.08 | <0,01 | - | - | - |
| max | 81,5 | 11,0 | 10,5 | <2,0 | <2,0 | <0,5 | <0,01 | <0,2 | <0,2 | <0,1 | <0.08 | <0.01 | - | - | - | ||
| CB496K CuSn7Pb15-B CB496K CuSn7Pb15-BResistant to sulfuric acid. High pressure bearing surface, railway rolling bearings, corrosion resistant valves. | ASTM C93800, BS LB1 | min | 74,0 | 6,2 | 13,2 | <2,0 | 0,5 | <0,5 | <0,01 | <0,2 | <0,2 | <0,1 | <0.08 | <0.01 | - | - | - |
| max | 79,5 | 8,0 | 17,0 | <2,0 | 2,0 | <0,5 | <0,01 | <0,2 | <0,2 | <0,1 | <0.08 | <0.01 | - | - | - | ||
| CB497K CuSn5Pb20-B CB497K CuSn5Pb20-BResistant to sulfuric acid. Surface high pressure bearings, valves, castings of corrosion resistant. | ASTM C94100, BS LB5 | min | 70,0 | 4,2 | 19,0 | <2,0 | 0,5 | <0,75 | <0,01 | <0,2 | <0,2 | <0,1 | <0.08 | <0.01 | - | - | - |
| max | 77,5 | 6,0 | 23,0 | <2,0 | 2,0 | <0,75 | <0,01 | <0,2 | <0,2 | <0,1 | <0.08 | <0.01 | - | - | - |
The leaded bronze alloys are known for their resistance towards corrosion, abrasion and their long service life. Due to high lead content, these alloyhs retain favorable thermal conductivity and good lubricity.