METHOD OF MANUFACTURING AUSTENITE STAINLESS STEEL

摘要

The austenitic manganese steel having a good moldability, strength and weldability is produced by (a) hot and cool rolling a steel slab composed of at most 1.5 wt.% C, 15-35 wt.% Mn, 0.1-6.0 wt.% Al, at least one of at most 0.6 wt.% Si, at most 5.0 wt.% Cu, at most 1.0 wt.% Nb, at most 0.5 wt.% V, at most 0.5 wt.% Ti, at most 9.0 wt.% Cr, at most 4.0 wt.% Ni and at most 0.2 wt.% N, residual Fe and impurity, and (b) annealing it at 550-1000 deg.C for 5 sec. - 20 hr. The austenitic manganese steel is used for cars and electromagnetic panels.