Method for treating the surface of ferritic stainless steel having superior corrosion resistance in the welding zone

摘要

A processing method for the surface of ferrite stainless steel having excellent corrosion resistance is provided to secure the corrosion resistance of a 304 steel level by polishing a heat affected zone appropriately after optimization of an alloy component. A processing method for the surface of ferrite stainless steel having excellent corrosion resistance includes a step for preparing stainless steel and a step for polishing the surface of the stainless steel by using a grinding material. The stainless steel includes 0.02% or less of C, 0.02% or less of N, 0.01% or less of S, 0.7% or less or Si, 21~25% of Cr, 0.8% or less of Ni, 0.8% or less of Cu, the remnant Fe and inevitably contained elements.