| Process | Main Properties | Example Substrates |
|---|---|---|
| Nituff | Extremely hard |
Aluminum and aluminum alloys (wrought or cast) |
| Black Nituff | Extremely hard |
Aluminum and aluminum alloys (wrought or cast) |
| Nituff C | Corrosion resistant |
Aluminum and aluminum alloys (wrought or cast) |
| NiCoTef | Low coefficient of friction |
Most metals, including aluminum, brass, steel, iron, copper and bronze |
| Tufnic | Extremely hard |
Most metal, including iron, brass, steel, copper and bronze |
| Hardex | Extremely hard |
Most metals, including aluminum, brass, steel, iron, copper and bronze |
| Silitef | Extremely hard |
Most metals, including aluminum, brass, steel, iron, copper and bronze |