BM 380
Special ultra-hard alloy (36–40 HRC) with compressive strength up to 1,579 MPa for precision stamping dies and deep-drawing tooling.
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Chemical composition
Chemical composition
| Copper | Remainder |
|---|---|
| Aluminum | 14.0–16.0% |
| Iron | 4.5–6.5% |
| Cobalt | máx. 3.0% |
| Manganese | máx. 3.0% |
| Others | máx. 0.5% |
Mechanical properties
Mechanical properties
| Tensile strength | 600–750 MPa |
|---|---|
| Yield strength | 500–600 MPa |
| Elongation | 0.0–0.2 % |
| Rockwell C hardness | 36–40 |
| Brinell hardness | 329–363 |
| Compressive strength | 1351–1579 MPa |
| Density | 6.95 kg/dm³ |
Informational values. Vary by manufacturing process, geometry, and dimensions.
Available formats
Formats
BilletMachinedPlate
Typical applications
Typical applications
- Precision stamping and lamination dies
- Deep drawing
- Die components and punch tools
- Forming rollers
- Eliminates deformation and weld spatter on stainless and carbon steel
Manufacturing
Manufacturing processes
- Extrusion
- Forging
Other alloys in this family
Aluminum bronze alloys
- BM 954
Aluminum-iron bronze with excellent balance between fatigue resistance, wear, and ductility — the family reference for structural parts and molds.
- BM 959
High-aluminum bronze tuned for load-bearing sliding service — mainly used in slide plates, as well as tube-forming and non-impact bending roller operations.