Non-annealing anti-edge-crack rolling method for ferritic stainless steel

The invention belongs to the technical field of metallurgy, and provides a ferritic stainless steel annealing-free anti-edge-crack rolling method which comprises the following steps: controlling the mass percent of C, Mn and N components in component design, performing electromagnetic stirring in a continuous casting process, and adopting different heat preservation processes for a casting blank according to a Pa value; a slow cooling process is controlled after hot rolling, laminar cooling is not used during steel coiling, steel is intensively put into a heat preservation cover for slow cooling, cold rolling is directly performed without annealing, and the rolling deformation rate of strip steel is controlled. According to the method, the edge crack rate of the 430 ferritic stainless steel is reduced to 2% or below through non-annealing direct rolling, the isometric crystal proportion of the casting blank is increased, and the percentage elongation after fracture of a hot plate and the hardness are obviously