Standard ： API5L ASTMA106/A53 DIN17175/1629 EN10204 Material ： GR.B X42-X60 ST37-ST52 SWE640 STP420 OD Tolerance： ±1% WT Tolerance： ±12.5% Tensile Strength： ≥395MPa Y ield Point ≥245MPa Chemical： C:017-0.24% Si:017-0.37% Mn:0.35-0.65% P: ≤0.035% S: ≤0.035% Cu: ≤0.25% Cr: ≤0.25% Length 5.8-12m Delivery FOB/CIF/CFR Delivery Time According to the customers request Application Rang Petroleum chemical power gas water metallurgy ship building construction etc Others a) special design available according to requirement b) anti –corrosion and high-temperature resistant with blank painting