Standards ASTM / ASME B861, B862, B338 / SB861, SB862, SB338 Outer Diameter 6.00 mm OD up to 914.4 mm OD, Sizes up to 24â?? NB Thickness 0.3mm â?? 50 mm Type Seamless / ERW / Welded Pipes Schedule SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS Seamless Pipes & Tubes Size 1 / 8â?³ NB â?? 24â?³ NB ERW Pipes & Tubes Size 1 / 8â?³ NB â?? 36â?³ NB Length Single Random, Double Random & Required Length End Plain End, Beveled End, Treaded