... Reducers, Caps, Stub EndsSize RangeFrom ½” up to 106” From 1/2 to 36 (Seamless Pipe Fittings),Form16 to 106(Seam Pipe Fittings)ScheduleSCH STD ... , WP321, WP347, WPS 312545 Duplex$super duplex stainless steel ASTM A 815 UNS S31803, UNS S32750, UNS S32760 STANDARDSANSI, ISO, JIS ... /316L, F321, F347, 5 Duplex$super duplex stainless steel ASTM A 182 F51/UNS S31803, F53/UNS S32F50, F55/UNS S32F60 ...