ASTM A789/A789M, 2022 Edition, March 1, 2022 - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service. ASME SA789/ASTM A789 TUBING BY YUHONG ASTM A789/ASME SA789 Duplex Steel Pipe/Tube YUHONG GROUP provides the best ASTM ...
Duplex stainless steels are called “duplex” because they have a two-phase microstructure consisting of grains of ferritic and austenitic stainless steel. Strength: Duplex stainless steels are about twice as strong as regular austenitic or ferritic stainless steels. Super ...
The microstructure of the duplex stainless steel globe valve consists of a mixture of an austenitic phase and a ferrite phase. Therefore, the duplex steel has both austenitic and ferritic stainless steel properties. The duplex globe valve uses stainless steel which has stronger ...