METHOD OF MANUFACTURING FERRITIC STAINLESS STEEL TO IMPROVE RIDGING PROPERTY

摘要

The present invention relates to a manufacturing method for improving the ridging property of ferritic stainless steel containing 16-20% chromium (Cr). In the present invention, by weight%, C 0.05% or less, Ti 0.7% or less, Si 1.0% or less, Mn 1.0% or less, P 0.04% or less, S 0.03% or less, Cr 16.0-20%, Ni 0.5% or less, Mo 1.0 When hot rolling a stainless steel slab composed of% or less, N 0.05% or less, Cu 1.0% or less, Al 0.15% or less, balance Fe and other common impurities, the rolling reduction step is 40% or more. The ferritic stainless steel having excellent leasing characteristics, characterized in that at least three passes having a reduction ratio of 30% or more in finishing rolling, and four or more passes having a shape factor (l / d) value of 3.5 or more. It provides a manufacturing method.;Ferrite, Stainless, Leasing, Rolling Rate, Shape Factor