Description
Ni40 cannot be hot or cold-worked, but can be hot formed while in the plastic condition. It has little tendency to warp annealed work to which it is applied.
Chemical & Physical Properties
| Ni | Cr | B | Si | C | Fe | Others | Hardness | Density | Melting Range |
| Bal. | 7.5 | 1.6 – 1.7 | 2.9 – 3.5 | 0.25 – 0.4 | < 5.0 | – | 36 – 45 HRC | 8.3 g/cm3 | 1050 ºC |
Deposit Characteristics
| Cold / Hot Abrasion | Good / Good |
| Erosion / Corrosion | Good / Good |
| Impact | Good |
| Magnetic | No |
| Deposit Layers | 2 Max |
| Machinability | Grinding |
| Max. Operating Temp. | 600 ºC |
Applications
- Moulds
- Valves
- Bearings
- Splines
- Seal rings
- Valve gates
- Water pumps and sprockets
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