Characteristic
Most commonly used bearing alloy, found in bearings operating at moderate loads and
moderate-ta-high speeds, as in electric motors and appliances. Other characteristics, material
for plain bearings in mechanical engineering with medium loads, also very good emergency
running and high wear resistance.
| Common name | Material description | World specifications: European | World specifications: British | World specifications: American |
| High-leaded tin bronze | CuSn7Pb15-C / CuSn7Pb15-B | CC496K / CC496K (EN 1982) | LB1 (BS 1400) | C93800 (ASTM B 505) |
Other name: CAC604, CuPb15Sn, CuSn8Pb15Ni
The equivalence between the standards is not absolute and some variations in composition can exist.
Similar or Equivalent Specifications
| UNS | ASTM | SAE | AMS | Federal | Military | Other |
| C93800 | B505 |
Chemical Composition in %, (EN 1982:2017, Castings)
| Cu | Sn | Pb | Zn | Ni | Al | Fe | Mn | P | S | Si | Sb | |
| Min | 74.0 | 6.0 | 13.0 | – | 0.5 | – | – | – | – | – | – | – |
| Max | 80.0 | 8.0 | 17.0 | 2.0 | 2.0 | 0.01 | 0.25 | 0.10 | 0.02 | 0.10 | 0.01 | 0.5 |
Chemical Composition in %, (EN 1982:2017, Ingots)
| Cu | Sn | Pb | Zn | Ni | Al | Fe | Mn | P | S | Si | Sb | |
| Min | 74.0 | 6.2 | 13.2 | – | 0.5 | – | – | – | – | – | – | – |
| Max | 79.5 | 8.0 | 17.0 | 2.0 | 2.0 | 0.01 | 0.25 | 0.2 | 0.10 | 0.08 | 0.01 | 0.5 |
Mechanical Properties
| Rm | Tensile strength min. | 200 N/mm2 |
| Rp0.2 | Proof Strength min. | 90 N/mm2 |
| A(50mm) | Elongation min. | 8% |
| HB | Brinell hardness min. | 65 HBW |
Properties:
Most commonly used bearing alloy, found in bearings operating at moderate loads and moderate-ta-high speeds, as in electric motors and appliances.
- material for plain bearings in mechanical engineering with medium loads;
- very good emergency running;
- high wear resistance;
Application:
- bearings of cranes and elevators;
- minor machine tool bearings;
- bearing for packing machines and electric motors;
- general bearing in mechanical engineering;
- valve and gate seat rings;
- guide bushes in hydraulic cylinders;
- slip rings.