Patent ID: 8168009

Claim:
Hard alloys with dry composition, having a chemical composition of elements consisting basically, as for mass percentage, of Carbon between 0.86 and 2.0, Chromium between 1.0 and 7.0, a Tungsten-equivalent, as given by ratio 2Mo+W, between 8.5 and 12.0, Niobium between 1.05 and 1.95, Vanadium between 1.3 and 3.0, Silicon between 0.8 and 3.0, Aluminum between 1.6 and 3.0, Cobalt lower than 10.0, Manganese from traces to 0.5, Phosphorus at a maximum of 0.04, Sulfur at a maximum of 0.005, Nitrogen lower than 0.03, rare-earth elements or actinides or Hf, Rf, Ac from 0.005 to 0.2, the remaining alloy substantially of Fe and impurities inevitable to the preparation process, wherein the alloy is produced by casting ingots, which are hot forged or rolled to the final application sizes.