Effect of reentrant casting of slab on the side reversal ( both side roughness band) of hot rolled coil and the mold life is obtained by test of reentrant casting of 180 mm X 1 238 mm 0Cr18Ni9 stainless steel slab. Results show that as the cast slab side reentrant value is 3 ~4 mm
the average width of side reversal of coil decreases to 9. 3 mm from original 11.2 mm
it is available to increase the utilization rate of coil