High-strength and high-toughness shield tunneling machine main driving stud material and manufacturing method

The invention provides a high-strength and high-toughness shield tunneling machine main driving stud material and a manufacturing method. The material comprises the following components, by weight, 0.11-0.17% of C, 0.2-0.4% of Si, 0.38-0.58% of Mn, 1.45-1.75% of Cr, 4.5-5.2% of Ni, 0.9-1.3% of W, 0.07-0.12% of V, 0.03-0.04% of rare earth element RE, 0.04-0.08% of Ti, 0.01-0.02% of Nb, S which is less than or equal to 0.02%, P which is less than or equal to 0.02% and the balance iron. A stud is processed through processes of acid pickling, quenching, tempering, thread rolling and tooth grinding, destressing treatment, surface treatment and the like, tooth grinding treatment is adopted, tissues obtained after heat treatment is not affected by cold machining plastic deformation, and strengthand toughness of the material are improved. 本发明提供了一种高强高韧盾构机主驱动螺柱材料及制备方法，包括以下重量百分比的组分：C：0.11-0.17%，Si：0.2-0.4%，Mn：0.38-0.58%，Cr：1.45-1.75%，Ni：4.5-5.2%，W：0.9-1.3%，V：0.07-0.12%，稀土元素RE：0.03-0.04%，Ti：0.04-0.08%，Nb：0.01-0.02%，S：≤0.