API 5L Seamless – Grades B, X42, X52, X60, X65, X70 We can help supply all of the High Yield Seamless API 5L steel pipe or line pipe supplies that your company needs for use in the oil or natural gas industries. API 5L steel pipe Specifications for these pipes regulate usage for standard Grade A and Grade B pipes, with Grade X indicating stronger variants for drilling, production and transport requirements for offshore, arctic, deep well or harsher environments. Let Threeway steel and Supply help you with your pipeline requirements. Size Range: 2" - 26" Schedules: STD, XH, 40, 80, 100, 120, 160, XXH Additional Services: Fusion Bond Epoxy, ARO, 3LPE, Tar Epoxy