The sheet piling (/% ： 0. 12 ~0. 22C

0. 15 ~ 0. 55Si

0. 80 ~ 1. 50Mn) is rolled by two-high reversing mills and universal tandem reversing mills. The stress-strain curves of the steel of sheet piling with strain rate 0. 5 ~5. 0 s

-1

at 980 ~ 1 030 °C are obtained by thermal simulation test

and the three-dimensional thermo-mechanical coupling simulation on sheet piling in rolling process has been carried out by using elastic-plasticity finite element method and software ABAQUS. In view of occurring mill overload situation in rolling process

the rolling load in each pass in rolling process is analyzed

and the groove filling improves

and the rolling load decreases by changing relative passes roll gap.