本发明公开了一种抗震耐蚀耐火钢及其制备方法，属于建筑结构用钢技术领域。解决了现有技术中抗震耐蚀耐火钢制备工艺复杂、工艺控制难度大的问题。上述抗震耐蚀耐火钢的化学成分组成按质量百分比为：C：0 .06％～0 .10％、Si：0 .65％～1 .00％、Mn：0 .80％～1 .20％、Mo：0 .50％～0 .60％、Ni：1 .00％～1 .50％、Cr：0 .72％～1 .00％、Cu：0 .25％～0 .40％、Ti：0 .01％～0 .03％、Nb：0 .05％～0 .10％、V：0 .03％～0 .10％、Al：0 .015％～0 .055％、P：<0.015％、 S：<0 .005％、O<0 .003％、N<0 .005％，其余为Fe和不可避免的杂质。制备方法包括：冶炼和铸造；进行两阶段控制轧制。上述制备方法简单易控，制得的抗震耐蚀耐火钢综合性能好。 

The invention discloses an anti-seismic corrosion resistant refractory steel and a preparation method thereof, belonging to the technical field of steel for building structure. It solves the problems of complex preparation and difficult process control of anti-seismic and corrosion resistant refractory steel in the existing technology. According to the mass percentage, the chemical composition of the above anti-seismic corrosion resistant refractory steel is: C: 0.06% ~ 0.10%, Si: 0.65% ~ 1.00%, Mn: 0.80% ~ 1.20%, Mo: 0.50% ~ 0.60%, Ni: 1.00% ~ 1.50%, Cr: 0.72% ~ 1.00%, Cu: 0.25% ~ 0.40%, Ti: 0.01% ~ 0.03%, Nb: 0.05% ~ 0.10%, V: 0.033% ~ 0.10%, Al: 0.015% ~ 0.055%, P: < 0.015%, S: < 0.005%, O< 0.003%, N< 0.005%, the rest is Fe and inevitable impurities. The preparation methods include smelting and casting; Two stages of controlled rolling are carried out. The preparation method is simple and easy to control, and the anti-seismic and corrosion resistant refractory steel has good comprehensive performance.