STEEL SHEET FOR OIL SANDS SLURRY TRANSPORTATION SYSTEM HAVING EXCELLENT WEAR RESISTANCE, CORROSION RESISTANCE AND LOW TEMPERATURE TOUGHNESS, AND METHOD FOR MANUFACTURING THE SAME

摘要

PURPOSE: A steel sheet with high wear resistance, corrosion resistance, low-temperature toughness for an oil sand slurry pipe and a manufacturing method thereof are provided to obtain a steel sheet with a low abrasion rate by securing a pearlite fraction of 50-80 area.% and a Vicker's hardness of 180-220Hv.;CONSTITUTION: A steel sheet with high wear resistance, corrosion resistance, low-temperature toughness for an oil sand slurry pipe comprises C of 0.2-0.35wt.%, Si of 0.1-0.5wt.%, Mn of 0.5-1.8wt.%, Ni of 0.1-0.6wt.%, Nb of 0.005-0.05wt.%, Ti of 0.005-0.02wt.%, P of 0.03wt.% or less, S of 0.03wt.% or less, Al of 0.05wt.% or less(0 is exclusive), N of 0.01wt.% or less(0 is exclusive), and Fe and inevitable impurities of the remaining amount.;COPYRIGHT KIPO 2012