Duplex Stainless Steel Pipes ASTM A789 S32750 (1.4410), UNS S31500 (Cr18NiMo3Si2). Standards:ASTM/ASMEA789/SA789,A790/SA790,A450,A530 Material:UNSS31803(Cr22Ni5Mo3/1.4462)/2205,UNSS32750(1.4410),UNSS31500(Cr18NiMo3Si2), UNS32760(1.4501) ChemicalComposition ---- Grade | C max | Si max | Mn max | P max | S max | Cr | Ni | Mo | N | UNSS32750 | 0.030 | 0.8 | 1.2 | 0.030 | 0.015 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 | UNSS31803 | 0.030 | 1.0 | 2.0 | 0.020 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 | UNSS31500 | 0.030 | 1.0 | 1.2-2.0 | 0.030 | 0.030 | 18.0-19.0 | 4.5-5.5 | 2.5-3.5 | 0.05-0.10 | ---- PhysicalProperties ---- Grade | Y.S.MPamin | T.S.Mpamin | Elongation% | HardnessHRC | UNSS32750 | 550 | 800 | 15 | 20 | UNSS31803 | 450 | 620 | 25 | 20 | UNSS31500 | 440 | 630 | 30 | 20 | ---- DuplexStainlessSteelPipeApplication: Chemicalprocessing,TransportandStorage. Oilandgasexplorationandoffshorerigs. Oilandgasrefining. Marineenvironments. Pollutioncontrolequipment. Pulpandpapermanufacturing ChemicalprocessPlant