Standards ASTM ASME A213 A249 A269 A312 A358 SA213 SA249 SA269 SA312 SA358 Outer Diameter 600 mm OD up to 9144 mm OD Sizes up to 24 NB Thickness 03mm 50 mm Type Seamless ERW EFW Welded Fabricated LSAW Pipes Schedule SCH20 SCH30 SCH40 STD SCH80 XS SCH60 SCH80 SCH120 SCH140 SCH160 XXS Seamless Pipes amp Tubes Size 1 8 NB 24 NB ERW Pipes amp Tubes Size 1 8 NB 36 NB EFW Pipes amp Tubes Size 6 NB 100 NB Length Single Random Double Random amp Required Length Form Round PipesTubes Square PipesTubes Rectangular PipeTubes Coiled Tubes U Shape Pan Cake Coils Hydraulic Tubes End Plain End Beveled End Treaded