公开(公告)号：US4325748A

公开(公告)日：1982-04-20

申请号：US134579

申请日：1980-03-27

申请人： Hajime Nashiwa ,  Toshihiko Kawai ,  Muneyoshi Takeyama ,  Youzi Yamaguchi ,  Tsuneaki Kobayashi ,  Tsutomu Nagahata

发明人： Hajime Nashiwa ,  Toshihiko Kawai ,  Muneyoshi Takeyama ,  Youzi Yamaguchi ,  Tsuneaki Kobayashi ,  Tsutomu Nagahata

IPC分类号： B21B3/00 ,  C21D8/02 ,  C22C38/00 ,  C22C38/04 ,  C21D8/00

CPC分类号： C22C38/002 ,  C21D8/021 ,  C22C38/00 ,  C22C38/04 ,  C21D8/0226

摘要： Steel plate having an excellent resistance to hydrogen induced cracking is obtained from a continuously cast slab having the following composition, C 0.01-0.30% by weight, Si 0.05-0.60% by weight, Mn 0.40-2.50% by weight, Sol Al 0.005-1.00% by weight, S 0.003% and lower by weight, the weight ratio of Ca/S is 2-10, the remainder being substantially Fe, through the steps of hot primary reduction rolling the cast slab, heating it at the temperature of 1200.degree. C. or higher for 10 hours or longer, and ordinary rolling it.

摘要翻译： 具有优异的耐氢诱发裂纹性的钢板由具有以下组成的连续铸造板坯获得：C 0.01-0.30重量％，Si 0.05-0.60重量％，Mn 0.40-2.50重量％，Sol Al 0.005- 1.00重量％，S 0.003重量％以下，Ca / S的重量比为2-10，余量基本上为Fe，通过热轧一次压延轧制板坯的步骤，在1200℃的温度下加热 ℃以上10小时以上，普通轧制。