| 摘要 |
<p>PURPOSE: A steel material for a structural member having excellent corrosion-resistance is provided to maintain corrosion resistance even under severe corrosion environment. CONSTITUTION: A steel material for a structural member having excellent corrosion-resistance is composed of 0.05-0.20 weight% of C, 0.1-0.3 weight% of Si, 0.50-1.20 weight% of Mn, 0.005-0.020 weight% of P, less than 0.005 weight% of S, 0.01-0.08 weight% of Al, 0.15-0.50 weight% of Cu, 0.15-0.50 weight% of Ni, 0.02-0.20 weight% of Cr, 0.005-0.020 weight% of Ti, 0.001-0.010 weight% of Ca, residual Fe, and inevitable impurities.</p> |
