... ½” up to 72” From 1/2 to 30 (Seamless Pipe Fittings),From16 to 72(Seam Pipe Fittings)ScheduleSCH STD, XS, XXS, SCH 10 ... , Incoloy 825, Hastelloy C276, Monel 400, Monel K500WPS 31254 S32750, UNS S32760 4 STAINLESS STEEL ASTM A403 WP304/304L, WP316/316L ... 312545 Duplex$super duplex stainless steel ASTM A 815 UNS S31803, UNS S32750, UNS S32760 STANDARDSANSI, ISO, JIS, DIN, BS,GB, SH, HG ...