PURPOSE: To provide soft stainless steel clad plate having high workability and high corrosion resistance.
CONSTITUTION: The surface layer steel has the composition consisting of, by weight, ≤0.0800% C, 3.0-25.0% Cr, and ≤0.0800% N, and the inner layer steel has the composition consisting of ≤0.0040% C, ≤0.02% N, ≤0.3% Al, $1.0% Si, and ≤0.05% P, and the amount of Cr of the inner layer and the surface layer is determined to meet the inequality 0.20% (Cr of the inner layer/Cr of the surface layer) ≥0.01. The double-layered structure is provided by the pouring method, and the ratio of the surface layer to the full thickness is set to 2-20% on one side, and 4-40% on both sides, and at the same time, the transition layer of the surface and inner layers whose ratio to the full thickness is 0.1-10% on one side, and 0.2-20% on both sides is formed. In addition, the annealing temperature after hot rolling or cold rolling is set to ≥720°C to ≤900°C.
SENUMA TAKEHIDE