Patent ID: 6162390
Filing Date: 2000-12-19
Classification: C21D,C22C,F16C,Y10S

Abstract:
Steel whose chemical composition comprises, by weight based on total weight:0.9%.ltoreq.C.ltoreq.1.5%0.4%.ltoreq.Mn.ltoreq.1.5%1. 2%.ltoreq.Si.ltoreq.2.5%1.3%.ltoreq.Cr.ltoreq.2%0%.ltoreq.Ni.ltoreq.0.5%0%.ltoreq.Mo.ltoreq.0.2%0%<Al.ltoreq.0.05%S.ltoreq.0.04%iron and impurities resulting from smelting, the composition furthermore satisfying the relationships:Mn.ltoreq.0.75+0.55.times.SiMn.ltoreq.2.5-0.8.times.Si.