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In heavy industries sector where the requirement of better technologically advanced tools and equipments are welcome with both hands, the Duplex Stainless Steel UNS S31803 Stud Bolts come as boon. It is two-phase, ferrite, austenitic 22% chromium, 3% molybdenum, 5 to 6% nickel alloyed stainless steel. It is the most widely used duplex steel grade stud bolts and they are well known for its characteristics. High yield strength, double that of the standard austenitic stainless steel grades is the most spoken about property. It also exhibits exemplary fatigue strength, as well as outstanding resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion in severe environments.


Due to its high molybdenum, chromium and nitrogen content it shows superior corrosion resistant properties in oxidising and acidic environments. The presence of ferrite also provides good performance in caustic environments. The Duplex Stainless Steel UNS S31803 Stud Bolts also have good performance in high temperatures and shows good weldability.


It is widely used in chemical processing, pressure vessels, piping and heat exchanger, soil and gas exploration and processing equipment and in other high chloride environments like in marine industries.

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