公开(公告)号：US20040221928A1

公开(公告)日：2004-11-11

申请号：US10866244

申请日：2004-06-14

Applicant: SOLLAC

Inventor： Mohamed Bouzekri

IPC: C21D008/00

CPC classification number: C21D8/0468 ,  C21D8/0436 ,  C21D8/0473 ,  C21D9/48

Abstract: A process is provided for preparation of an aluminum-killed medium-carbon steel sheet containing by weight from 0.040 to 0.080% of carbon, from 0.35 to 0.50% of manganese, from 0.040 to 0.070% of aluminum, from 0.004 to 0.006% of nitrogen, the remainder being iron and the inevitable trace impurities, wherein the steel contains carbon in free state, a grain count per mM2 greater than 20000 and, in the aged condition, has a percentage elongation A % satisfying the relationship: (640-Rm)/10nullA %null(700-Rm)/l1 where Rm is the maximum rupture strength.

Abstract translation: 提供了一种制备铝 - 杀死的中碳钢板的方法，其含有0.040至0.080％的碳，0.35至0.50％的锰，0.040至0.070％的铝，0.004至0.006％的氮 剩余部分为铁和不可避免的痕量杂质，其中钢含有游离状态的碳，每米2以上的颗粒数大于20000，而在老化条件下，其百分比伸长率A％满足关系：（640 -Rm）/ 10 <= A％<=（700-Rm）/ l其中Rm是最大断裂强度。

公开(公告)号：US20040094247A1

公开(公告)日：2004-05-20

申请号：US10699884

申请日：2003-11-04

Applicant: SOLLAC

Inventor： Mohamed Bouzekri

IPC: C21D008/00

CPC classification number: C21D8/0468 ,  C21D8/0436 ,  C21D8/0473 ,  C21D9/48

Abstract: A process is provided for preparation of an aluminum-killed medium-carbon steel sheet containing by weight from 0.040 to 0.080% of carbon, from 0.35 to 0.50% of manganese, from 0.040 to 0.070% of aluminum, from 0.004 to 0.006% of nitrogen, the remainder being iron and the inevitable trace impurities, wherein the steel contains carbon in free state, a grain count per mm2 greater than 20000 and, in the aged condition, has a percentage elongation A % satisfying the relationship: (640nullRm)/10nullA%null(700nullRm)/11 where Rm is the maximum rupture strength.

Abstract translation: 提供了一种制备铝 - 杀死的中碳钢板的方法，其含有0.040至0.080％的碳，0.35至0.50％的锰，0.040至0.070％的铝，0.004至0.006％的氮 余量为铁和不可避免的痕量杂质，其中钢含有自由状态的碳，每毫米2以上的颗粒数大于20000，而在老化条件下，其伸长率A％满足下列关系：（640 -Rm）/ 10 <= A％<=（700-Rm）/ 11其中Rm是最大断裂强度。