Description
This is necessarily achieved by loss of some abrasion resistance. Hot hardness maintained to approximately 400°C. Used on extruder screw flights, wear rings, bearings, camshafts and diesel engine valve facings. Used to spray and fuse glass-forming plungers when high hardness is required.
Chemical & Physical Properties
| Ni | Cr | B | Si | C | Fe | Others | Hardness | Density | Melting Range |
| Bal. | 11 – 12 | 2.2 – 2.3 | 3.5 – 4 | 0.45 – 0.5 | < 5.0 | – | 47 – 55 HRC | 8.16 g/cm3 | 980-1060 ºC |
Deposit Characteristics
| Cold / Hot Abrasion | Excellent / Good |
| Erosion / Corrosion | Good / Good |
| Impact | Good |
| Magnetic | No |
| Deposit Layers | 2 Max |
| Machinability | Grinding |
| Max. Operating Temp. | 600 ºC |
Applications
- Bushings
- Valves
- Pump parts
- Dies
- Oil extraction screws
- Centrifuges
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