S31803 duplex steel is a class of steel in which the microstructure of the steel contains ferritic and austenitic metal phases in its metallurgical properties. S31803 duplex stainless steel material is used in applications where high corrosion rates are expected.

Standard: ASTM A789/ASME SA789、ASTM A790/ASME SA790、ASTM A928/ASME SA928
Size: 1/2''~48''
Thickness: 5S, 10S, 40S, 80S, 160S
End: Beveled End, Plain End