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.