CAST IRON CONTAINING NIOBIUM AND COMPONENT

摘要

Known cast iron alloys have use limits in respect of the temperature. The alloy comprises (in % by weight): silicon (Si) 2.0%-4.5%, in particular 2.3%-3.9%, carbon (C) 2.9%-4.0%, in particular 3.2%-3.7%, niobium (Nb) 0.05%-0.7%, in particular 0.05%-0.6%, very particularly preferably from 0.1% to 0.7%, molybdenum (Mo) 0.3%-1.5%, in particular 0.4%-1.0%, very particularly preferably 0.5%, optionally cobalt (Co) 0.1%-2.0%, in particular 0.1%-1.0%, manganese (Mn) = 0.3%, in particular 0.15-0.30%, nickel (Ni) = 0.5%, in particular = 0.3%, magnesium (Mg) = 0.07%, in particular at least 0.03%, very particularly preferably 0.03%-0.06%, phosphorus (P) = 0.05%, in particular 0.02%-0.035%, sulphur (S) = 0.012%, in particular = 0.005%, very particularly preferably in the range from 0.003% to 0.012%, chromium (Cr) =0.1%, in particular = 0.05%, antimony (Sb) = 0.004%, in particular = 0.003%, iron (Fe), in particular balance iron.