Ferritic Stainless Steel Sheet And Associated Production Method

Abstract: The invention relates to a ferritic stainless steel sheet, the composition of which comprises, the contents being expressed by weight: C = 0.03% 0.25% = Mn = 1%, preferably 0.3% = Mn = 0.5% 0% < Si = 0.20%, preferably Si = 0.15% with Mn/Si = 1.2 S = 0.005% P = 0.04% 19.0% = Cr = 24.0% Ni = 0.5% Mo = 0.10% N = 0.03% Cu = 0.20% 0.40% = Nb = 1.0% 0.05% = Ti = 0.2%, preferably 0.05% = Ti = 0.15% Zr = 0.02% Al = 0.02% V = 0.2% Co = 0.05% Sn = 0.05%, rare earths = 800 ppm, it being understood that: V + Zr + Al = 0.2% Ti + V + Zr + Al = 0.30% Ti + Nb = 1.0% Ni + Cu + Co = 0.60% 2xNb-7xC = 0.8% 29 0% = Ti - 4xN = 0.15% 0.2 ppm = Ca = 20 ppm 1 ppm = O = 60 ppm, the remainder of the composition consisting of iron and unavoidable impurities resulting from the preparation, the sheet being an annealed and pickled sheet, the sheet comprising a volume fraction of Fe2Nb Laves phases of less than 0.2%.

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents