SpecificationsASTM B161 / ASME SB161 Standard GradeASTM B161 UNS N07718, ASME SB161 UNS N07718,API UNS N07718 Schedule SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS Size 1/8" NB TO 30" NB Type Seamless, Welded, Fabricated, ERW, LSAW Pipe