Standard:API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS, JIS, IS Certificate:EN10217, EN10219, API 5L ... Thickness:3.2mm - 25.4mm Length:6 – 22 m Steel Grade: API 5L: GR A, GR B, X42,X46, X56, X60 ... : GR A, GR B, GR C, GR D BS 4360: Grade 43, Grade 50 EN: S275, S275JR, S355JRH, S355J2H Surface:Fusion bond Epoxy ...