... Q255, Q275, 20MnSi etc.MOQ300 MTTechniqueHot rolled, Continuous casting and rollingSize50*50mm ~ 180*180mmLength6m,12m or as requestStandardASTM/GB/JIS ... , machinery, medicine, food, electric power, energy, space, building and decoration, etc.2.Can be made into mould template, mortise ... pin, column3.This kind of steel have good mechanical property, is widely used in structural ...