VERY GOOD POLISHING AND PHOTO ETCHING PROPERTIES
Uddeholm Impax Supreme is a prehardened tool steel with very good through hardness properties, combined with excellent toughness and easy of machining in its harden state. It is suitable for a wide range of hot work applications in the support or holder block areas. Uddeholm Impax Supreme is supplied at 290-330 HB. In east/south east Asian countries served by Assab Uddeholm Impax Supreme is sold as AS 718 Supreme.
If the application allows it can be subsequently nitrided to increase surface wear resistance or locally flame hardened to reduce surface damage