Steel for thick-specification camion spoke and manufacturing method for steel

The invention belongs to the field of steel for automobiles and particularly relates to steel for a thick-specification camion spoke and a manufacturing method for the steel. The steel for the spoke is composed of, by weight percentage, 0.07%-0.10% of C, 0.01%-0.20% of Si, 0.85%-1.00% of Mn, 0.01%-0.025% of P, 0.01%-0.015% of S, 0.010%-0.050% of Als and the balance Fe and inevitable impurities. The manufacturing method for the steel includes the steps that the heating temperature of a slab ranges from 1200 DEG C to 1240 DEG C; five-pass rolling is adopted in rough rolling, and the deformation in each pass is larger than or equal to 20%; the temperature of a finish rolling inlet ranges from 985 DEG C to 1050 DEG C, and the final rolling temperature ranges from 830 DEG C to 870 DEG C; and a sectioned cooling manner is adopted, and the coiling temperature ranges from 530 DEG C to 580 DEG C. The steel for the thick-specification camion spoke has the beneficial effects of being stable in mechanical performance, go