Super Duplex stainless steel owes its existence to Duplex stainless steel, a material developed in Sweden around 70 years ago.  Its composition consisted of a microstructure that contained almost equal parts of ferrite and austenite, and became one more family of grades that ranged in its corrosion performance.

Even the term ‘Super Duplex’ denotes that it is a highly alloyed and super performing Duplex stainless steel material, with superior resistance to pitting and corrosion.

Benefits of Super Duplex:

Super Duplex is highly resistant to a variety of potential corrosion types, including chloride stress, suphide stress and cracking, or fatigue. This extremely strong material has a low coefficient expansion and high thermal conductivity, and its levels of resistance to corrosion make it an ideal material to use for a variety of purposes. Super Duplex provides good workability properties and weldability, and has high energy absorption.

Applications suited to Super Duplex

Super Duplex stainless steel is suited to a wide variety of applications, such as:

•    On use on tubes or pipes used for the production of or handling of gas and oil
•    Heat exchangers and piping used in desalination plants
•    In the used of mechanical or structural components
•    Piping or pipe fittings used in process industries that contain chlorides
•    In industrial systems where high corrosion fatigue is needed including rotors, fans, shafts or press rolls
•    On Cargo tanks, sea going vessels or welding consumables used on chemical tankers
•    Any application that calls for a high strength solution.

Here at Chemipetro, a leading supplier and manufacturer of flanges and pipe fittings, we supply high quality Super Duplex stainless steel materials to suit an array of purposes.