Technical Standard magnetic stainless steel plate

Corrosion resistance of stainless steel plate, the bending workability and toughness of welded portion, and the punching workability of the welded portions of high-strength steel sheet excellent in its manufacturing method. Specifically included are the C: 0.02% or less, N: 409 stainless steel or less, Cr: more than 11% but less than 17%, the content of the appropriate Si, Mn, P, S, Al, Ni, and satisfies 12 ≤ Cr Mo 1.5Si ≤ 17,1 ≤ Ni 30 (CN) 0.5 (Mn Cu) ≤ 4, Cr 0.5 (Ni Cu) 3.3Mo ≥ 16.0,0.006 ≤ CN ≤ 0.030 stainless steel plate heated to 850 ~ 1250 ℃, and then to 1 Stainless steel factory the cooling rate of the above heat treatment. This can be a tissue containing mroe than 12% volume fraction of martensite, 730MPa or more high strength, corrosion resistance and bending workability, excellent HAZ toughness, high strength stainless steel. Recycling containing Mo, B, etc., can significantly improve the performance of welded parts stamping.