本发明公开了一种抗震耐火耐蚀钢以及中厚钢板和薄钢板的制造方法,属于钢结构用钢技术领域,解决了现有的钢结构建筑用钢的抗震耐火耐蚀等综合性能较差的问题。其组成为:C:0 .05~0 .11wt .%、Si:0 .10~0 .30wt .%、Mn:1 .00~2 .00wt .%、Ni:1 .00~1 .50wt .%、Cu:1 .00~1 .50wt .%、Mo:0 .50~0 .60wt .%、Nb:0 .05~0 .10wt .%、V:0 .05~0 .10wt .%、Ti:0 .010~0 .030wt .%、Al:0 .015~0 .035wt .%、B:0 ~ 0 .0 0 1 8 w t .% 、P :< 0 .0 1 5 w t .% 、S :<0 .010wt .%,其余为Fe和不可避免的杂质。上述制造方法采用转炉或电炉冶炼,铸造采用连铸或模铸。上述抗震耐火耐蚀钢可用于钢结构建筑。
The invention discloses a manufacturing method of fire resistant and corrosion resistant steel, medium thick steel plate and thin steel plate, belonging to the technical field of steel structure, and solves the problem of poor comprehensive performance of existing steel structure construction steel such as fire resistant and corrosion resistant. Its composition is : C : 0.05 – 0.11 wt. %, Si : 0.10 – 0.30 wt. %, Mn : 1.00 – 2.00 wt. %, Ni : 1.00 – 1.50 wt. %, Cu : 1.00 – 1.50 wt. %, Mo : 0.50 – 0.60 wt. %, Nb : 0.05 – 0.10 wt. %, V : 0.05 – 0.10 wt. %, Ti : 0.010 – 0.030 wt. %, Al : 0.015 – 0.035 wt. %, B : 0.018 wt. %, P : < 0.015 wt. %, S : < 0.010 wt. %, and the rest are Fe and inevitable impurities. The above manufacturing methods are smelting by converter or electric furnace, and casting by continuous casting or die casting. The above seismic, fire and corrosion resistant steel can be used for steel structure buildings.