| 摘要 |
<p>PURPOSE: A high-ductility hot rolled plate with excellent corrosion resistance and a manufacturing method thereof are provided to reduce manufacturing costs and enhance ductility due to low content of alloy element. CONSTITUTION: A high-ductility hot rolled plate with excellent corrosion resistance consists of C of 0.15weight% or less, Si of 1.0weigh% or less, Mn of 1.5weight% or less, S of 0.03weight% or less, P of 0.02weight% or less, Al of 0.01~0.1weight%, Mo of 0.05~0.2weight%, Fe and other inevitable impurities. At the hot rolled plate, the decrease in corrosion to sulfur 50volume% solution is below 300mg/cm^2/hr. At the hot rolled plate, the decrease in SULFURIC ACID-HYDROCHLORIC ACID COMPOSITE corrosion to sulfur 16.9volume%+hydrochloric acid 0.35volume% solution is below 70 mg/cm^2/hr.</p> |
