... - GM models; that is 18 / 8 stainless steel GB brand for 0Cr18Ni9. 420 - "class cutting tools," martensitic steel, similar to Brandt's first ... surgical tools, can do very bright. 440 - high-strength steel cutting tools, higher carbon content, after appropriate heat treatment can ... , cost-effective As a result of high chromium stainless steel, nickel, high temperature resistance when off and still have ...