... X42, X46, X52, X56,X60, X65, X70, X80,API spec 5L-2004 4311High strength structural steelPlates products supplied inHeat-treated ... steel sheet,stainless steel sheet,galvanised steel,PPG,steel pipe, steel strip, flat steel, etcMechanical PropertiesGradeThickness(mm)Yieldpoint ... 40Supply worldwide a wide variety of quality steel plate, seamless pipe, angle, re-bar, wire, round steel, channel steel ...