摘要 |
PURPOSE: A continuous rolling method for ferritic stainless steel and ferritic stainless steel manufactured by the same is provided to decrease the degree of roping bending during continuous rolling and to reduce oil pit on the surface of a cold rolled steel sheet, thereby improving glossiness and organizing a differentiated process. CONSTITUTION: A continuous rolling method for ferritic stainless steel uses a first to a fourth continuous rolling mill stands which are successively arranged. The amount of tension applied to the stainless steel gets smaller as the continuous rolling is executed from the first continuous rolling mill stand to the fourth continuous rolling mill stand so that the area ratio of oil pit of the rolled stainless steel becomes less 0.3%. The first to the fourth continuous rolling mill stands roll the stainless steel with tension of 90-180kN. After the rolling, the glossiness of the stainless steel is 915 or greater. Before the rolling, the width of the stainless steel is 1000-1250mm and the thickness is 1.0-3.0mm. By using the first to fourth continuous rolling mill stands which are successively arranged, continuous rolling is executed. After the continuous rolling, the area ratio of oil pit of the rolled stainless steel is 0.3% or less and the glossiness is 915 or greater. [Reference numerals] (AA) Tension(kN); (BB) Comparative embodiment; (CC) Embodiment; (DD) 1 pass; (EE) 2 pass; (FF) 3 pass; (GG) 4 pass
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