The universal multiple-layer coating
A TiAlN-based hard coating, especially developed for drilling under extreme conditions.
Where is SUPRAL employed?
Exceptional results during drilling, also with inferior cooling and tools without inner cooling. Outstanding results also during milling and forming, as well as drilling.
- High hardness
- High oxidation stability
- Low friction
- Very suitable for drilling steel to 45HRC
- For a large range of cemented carbides, cerment and HSS tools
- Excellently for machining of cast iron
- High-speed machining, semi-dry (MMS) or dry processing
Hardness: 3.500 ± 500 HV
Maximum application temperature: 800°C / 1470°F
Coefficient of friction against steel: < 0.5
Layer thickness: 2-4 µm
Datasheet as a PDF file
By a mouse click on the link, the PDF file is opened in a new browser window. If you wish to save the datasheet on your computer, click with the right-hand mouse button on the link and select (according to browser) “Save to destination under …” or “Save linked content under …”