Martensitic stainless steel with improved strength and corrosion resistance and method for manufacturing same

Martensitic stainless steel having improved strength and corrosion resistance is disclosed. The disclosed martensitic stainless steel sheet contains 0.3% to 0.5% by weight of C, 0.01% to 0.025% by weight of N, 0.3% to 0.5% by weight of Si, 0.4% to 0.6% by weight of Mn, 13.1% to 14.5% by weight of Cr, 0.95% to 1.10% by weight of Mo, 0.05% to 0.3% by weight of V, 0.3% to 0.5% by weight of Ni, 0.001% to 0.5% by weight of Cu, and the balance of Fe and unavoidable impurities, and satisfies formula (1). Formula (1): 16.4 < = (Cr + 3.3 Mo + 16N) * (Mo + V) < = 23.3, wherein Cr, N, Mo, and V represent the contents (wt%) of the corresponding elements. 公开了具有改善的强度和耐腐蚀性的马氏体不锈钢。所公开的马氏体不锈钢板以重量百分比(重量％)计包含0.3％至0.5％的C、0.01％至0.025％的N、0.3％至0.5％的Si、0.4％至0.6％的Mn、13.1％至14.5％的Cr、0.95％至1.10％的Mo、0.05％至0.3％的V、0.3％至0.5％的Ni、0.001％至0.5％的Cu、以及余量为Fe和不可避免的杂质，并且满足式(1)。式(1)：16.4≤(Cr+3.3Mo+16N)*(Mo+V)≤23.3，其中Cr、N、Mo和V表示相应元素的含量(重量％)。