BM 280HT
AMS 4590AMS 4881
Premium family member, heat-treated for aerospace service and high loads at elevated temperatures.
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Chemical composition
Chemical composition
| Copper | Remainder |
|---|---|
| Aluminum | 9.5–12.5% |
| Iron | 4.0–6.0% |
| Nickel | 4.0–6.0% |
| Manganese | máx. 1.5% |
| Others | máx. 0.5% |
Mechanical properties
Mechanical properties
| Tensile strength | 650–896 MPa |
|---|---|
| Yield strength | 400–724 MPa |
| Elongation | 4–10 % |
| Rockwell C hardness | 26–30 |
| Brinell hardness | 261–285 |
| Compressive strength | 1034–1324 MPa |
| Density | 7.45 kg/dm³ |
Informational values. Vary by manufacturing process, geometry, and dimensions.
Available formats
Formats
BilletTubeMachinedPlate
Typical applications
Typical applications
- Aerospace landing-gear bearings
- Heavy-load bushings
- Tube-forming rollers
- Plastic and glass mold components
- Tube-bending tooling
Manufacturing
Manufacturing processes
- Extrusion
- Forging
Other alloys in this family
Nickel-aluminum bronze alloys
- BM 955
Forged, centrifugally cast, or cast nickel-aluminum bronze with high mechanical strength and excellent performance in glass molds, aircraft parts, helical gears, and high-load bushings.
- BM 630
Extruded nickel-aluminum bronze with high fatigue and corrosion resistance, plus non-sparking properties for explosive areas.