| 摘要 |
<p>PURPOSE:To obtain a steel sheet having excellent pitting corrosion resistance and possible to be simply used as scrap. CONSTITUTION:Solid-solution Ti is contained by executing hot rolling at >=1200 deg.C heating temp., >=Ar3 point finishing temp., >=20 deg.C/s cooling rate and 350-600 deg.C coiling temp. to the steel composed by wt.%, of 0.02<C<=0.08, <=2.0 Si, 0.030<Mn<=2.50, <0.30 P, <=0.01 S, 0.01-0.05 Al, 0.02-0.30 total Ti, <=0.006 N and the balance iron with inevitable impurities. By this method, a steel sheet for strong working having excellent pitting corrosion resistance can be produced.</p> |
