What Are Super Duplex Flanges?
The Super Duplex alloy is designed to resist corrosion from aggressive chemical process fluids and cooling solutions that contain chloride. Depending on the alloy's composition, the duplex family of stainless steel exhibits a range of corrosion resistance. Due to their mixed microstructure, which contains roughly equal amounts of ferrite and austenite, they are known as Duplex.
During the annealing procedure, about 40 to 50 percent of the alloy's ferrite is present. This microstructure combines the austenitic grades' corrosion resistance with the ferritic grades' strength and the super duplex's corrosion resistance. In harsh conditions, it is also very resistant to sulfide-stress reinforcement corrosion. A practical cure for stress cracking brought on by chloride is Super Duplex Steel.
Super Duplex S32750 Flanges are renowned for their high impact strength and are used in a variety of industries, including heat exchangers, seawater, subsea piping systems, and oil and gas applications.
Steels that can withstand acids, acid chlorides, caustic solutions, and even high temperatures are necessary for the chemical, pulp, and paper industries. Super Duplex Flanges have very good resistance to these chemicals thanks to their high chromium content.
Advantages of Super Duplex Flanges
1. A robust and long-lasting flange.
2. Resistance to pitting and crevice corrosion
3. The material has a high level of resistance to stress corrosion cracking and corrosion fatigue.
4. Chlorides are highly resistant to stress-corrosion cracking.
5. There is high heat conductivity.
6. Strong resistance to sulfuric acid-induced corrosion.
7. They have better heat conductivity and less thermal expansion than austenitic steels.
8. The materials absorb a lot of energy and are easy to work with and weld.
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