HIGHLY CORROSION-RESISTANT, HIGH-STRENGTH AUSTENITIC STAINLESS STEEL AND PROCESS FOR ITS PRODUCTION

摘要

Austenitic stainless steel showing an excellent corrosion resistance in an oxidative atmosphere and an excellent strength, which is obtained by selecting kinds and contents of constituent elements, particularly limiting the upper level of the carbon content and that of the N content without adding excess amounts of the elements so as to prevent deterioration of the corrosion resistance and formation of defects upon production of steel ingot and enhance a solid solution state, allowing V to be present together with Cr, Ni, etc. for preventing formation of Cr carbide, and effecting dispersion/precipitation of carbide or nitride of V to enhance the strength.