CuSn7Pb15-C / CuSn7Pb15-B (CC496K)
| Common name | Material description | World specifications |
||
|---|---|---|---|---|
| European | British | 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.
Chemical Composition in %, (EN 1982:2017, Castings)
| Cu | Sn | Pb | Zn | Ni | Al | Fe | Mn | P | S | Si | Sb | As | Cr | Bi | Cd | Se | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | 74.0 | 6.0 | 13.0 | - | 0.5 | - | - | - | - | - | - | - | - | - | - | - | - |
| Max | 80.0 | 8.0 | 17.0 | 2.0 | 2.0 | 0.01 | 0.25 | 0.2 | 0.10 | 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 | As | Cr | Bi | Cd | Se | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 (EN 1982:2017, Continuous castings)
| Rm | Tensile strength min. | 200 N/mm2 |
| Rp0.2 | Proof Strength min. | 90 N/mm2 |
| A | 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.