Usage:Used for low pressure liquid delivery, such as water, gas, and oil. Oil drilling and machinery manufacturing, etc. Standard:API 5L, API 5CT, ASTM 53, EN10217, DIN 2458. IS 3589, JIS G3452, BS1387 Certificate:API 5L PSL1/ PSL2, API 5CT Out Diameter:21.3mm - 610mmWall Thickness:1.8 - 22mmLength:0.3 - 12mSteel Grade:API 5L : GR B, X42, X46, X56, X60, X65, X70ASTM A53: GR A, GR BEN: S275, S275JR, S355JRH, S355J2HSurface:Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating as per customer's requirement Test:Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test.Mill Test Certificate:EN 10204/3.1B Contact :selena(at)xinyuesteel.com