abrasion resistant steel plate which has excellent low temperature toughness and excellent corrosive wear resistance

摘要

patent summary: "abrasion resistant steel plate which has excellent low temperature toughness and excellent corrosive wear resistance". The present invention relates to an abrasion resistant steel plate which has excellent low temperature toughness and corrosive wear resistance. an abrasion resistant steel plate having excellent low temperature toughness and corrosive wear resistance containing by weight 0.10% to 0.20% of c, 0.05% to 1.00% of itself, 0 , 1% to 2,0% of mn, not more than 0,020% of p, not more than 0,005% of s and 0,005% to 0,100% of al, and additionally containing one or two element types selected from 0,05% at 2.0% cr and 0.05% to 1.0% by hand, and satisfying the condition that the amount of steel solid solution (crsol) content and the amount of solid solution hand content of steel (mosol) is 0,05? (crsol + 2.5 mosol)? 2.0 having a component structure comprising a remainder of unavoidable faith and impurities using a martensite phase in the cooled condition as a main phase having a structure in which the previous austenite grain size is not is greater than 30 µm, and additionally having surface hardness being at least 360 in terms of a brinel hardness of hbw10 / 3000.