Solution: Correctly applied ceramic insert grades offer a powerful alternative. One important subgroup are the Inconel alloys, typically used for high-temperature applications in. Our Secomax™ ceramic insert grades provide optimized wear resistance and toughness when cutting parts from heat-resistant superalloys, such as Inconel, MAR, RENE, Nimonic and Waspaloy, at high speeds. In fact, the high-speed capabilities of ceramics result in metal removal rates that are four to. Because ceramic blades are resistant to high temperatures, they are more conducive to high-temperature and high-speed cutting.