Duplex Pipe Standards: ASTM/ASME A789/SA789, A790/SA790 Material: UNS S31803(Cr22Ni5Mo3)/2205;UNS S32750 Duplex Pipe/Duplex Tube/Super Duplex Pipe/Stainless Duplex PipeStandards: ASTM/ASME A789/SA789, A790/SA790,A450,A530Material: UNS S31803(Cr22Ni5Mo3)/2205,UNS S32750,UNS S31500(Cr18NiMo3Si2) Chemical CompositionGradeC maxSimaxMnmaxPmaxSmaxCrNiMoNUNS S327500.0300.81.20.0300.01524.0-26.06.0-8.03. ...