... / 90 / 180 , Long / Short Radius Elbows, Equal / Reducing Crosses, Concentric / Eccentric Reducers, Caps, Stub EndsSize RangeFrom ½” up to 106” From 1/2 ... 31254 S32750, UNS S32760 4 STAINLESS STEEL ASTM A403 WP304/304L, WP316/316L, WP321, WP347, WPS 312545 Duplex$super duplex ... , F22, F913 STAINLESS STEEL STANDARDSCE and certification:ASTM A182 F304/304L, F316/316L, F321, F347, ANSI, ISO, JIS, DIN, BS ...