The vertical and transverse rigidity of the strip mill are important to the gauge and shape control of the rolled strip.The 3-D finite element whole model of six-high mill was established based on the practical parameters of 1420 at the final stand.The effects of strip width,roll shifting,roll diameter and bending force on the transverse rigidity of the six-high mill were studied.The effect of roll shifting of the middle roll on the vertical rigidity was also calculated.The results provide reference for reg...