CORROSION RESISTANT STEEL HAVING HIGH RESISTANCE TO CORROSION AT SULFURIC AND SULFURIC/HYDROCHLORIC ACID CONDENSING ENVIRONMENT AND MANUFACTURING METHOD THE SAME

摘要

The present invention relates to a steel sheet having corrosion resistance in a sulfuric acid and sulfuric acid/hydrochloric acid complex environment and a method for manufacturing the same. Corrosion-resistant steel sheet according to an embodiment of the present invention, by weight, carbon (C): 0.15% or less (excluding 0%), copper (Cu): 0.05 to 0.5%, nickel (Ni): 0.02 to 0.3 % And antimony (Sb): 0.05 to 0.45%, tin (Sn): 0.05 to 0.45%, tungsten (W): 0.05 to 0.2%, molybdenum (Mo): 0.2 to 1.45% And contains the remaining iron (Fe) and unavoidable impurities, and satisfies Expression 1 below. [Equation 1] Cu + 3ｘSb + 5ｘSn + 5ｘW + Mo> 1 (wt%)