Patent ID: 6773482
Filing Date: 2004-08-10
Classification: B22F,C21D,C22C

Abstract:
A cold work steel alloy comprising, in percent by weight:C2.05 to 2.65Siâ€‰ up to 2.0Mnâ€‰ up to 2.0Cr6.10 to 9.80W0.5 to 2.4Mo2.15 to 4.70V7.05 to 9.0â€‚Nb0.25 to 2.45Coâ€‚â€‰   up to 10.0Sâ€‰  up to 0.3N0.04 to 0.32Niâ€‚â€‰   up to 1.50accompanying elementsâ€‰up to 2.6as well as production-related impurities, with the balance being Fe, said alloy having an oxygen content of less than 100 ppm and a content of nonmetallic inclusions corresponding to a K0 value of a maximum of 3 when tested according to DIN 50 602.