BM 863
UNS C86300SAE 430BASTM B147-8CCa86BS 140 HTB-3JIS CuZn25A15
The same BM 863 specification as the aluminum bronze family, also classified as aluminum-zinc bronze due to its 22–28% zinc content — combines hardness and corrosion resistance.
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Chemical composition
Chemical composition
| Copper | Remainder |
|---|---|
| Zinc | 22.0–28.0% |
| Aluminum | 5.0–7.5% |
| Manganese | 2.5–5.0% |
| Iron | 2.0–4.0% |
| Nickel | máx. 1.0% |
| Tin | máx. 0.2% |
| Lead | máx. 0.2% |
Mechanical properties
Mechanical properties
| Tensile strength | 760–820 MPa |
|---|---|
| Yield strength | 410–430 MPa |
| Elongation | 12–14 % |
| Rockwell B hardness | 90–94 |
| Compressive strength | 415–670 MPa |
| Density | 7.85 kg/dm³ |
Informational values. Vary by manufacturing process, geometry, and dimensions.
Available formats
Formats
BilletTubeMachinedPlate
Typical applications
Typical applications
- Bushings and bearings
- Press nuts
- Trolley components
- Hydraulic cylinders
- Cams
- High-strength supports
Manufacturing
Manufacturing processes
- Forging
- Centrifugal casting