| 摘要 |
PURPOSE: A process for preparing weathering steel wire and strand remarkably increased in toughness by controlling the chemical composition of steel, adding a deposition hardening element and applying a suitable processing method is provided. Whereby, the steel can be used as steel requested for high strength and high atmospheric corrosion resistance. CONSTITUTION: This weathering steel wire is characterized in that it comprises 0.30 to 0.60% by weight of C, 0.15 to 0.65% by weight of Si, below 0.85% by weight of Mn, 0.20 to 0.50% by weight of Cu, 0.45 to 0.75% by weight of Cr, 0.05 to 0.30% by weight of Ni, 0.05 to 0.30% by weight of Ni, 0.02 to 0.2% by weight of W and 0.05 to 0.30% by weight of Nb or Ti and the balance of Fe and inevitable impurities. This steel wire has a toughness of 160 to 215kgf/mm¬2.
|
