The Steel Authority of India (SAIL) has developed capability to produce super duplex stainless steel in SS 32205 grade at its Salem Steel Plant (SSP) in Tamil Nadu.
With this, SAIL has emerged among the few Indian steelmakers to have developed this grade of steel. The grade has so far been mainly imported.
The super duplex stainless steel has superior corrosion resistance with higher strength and formability. Due to these characteristics, it can be effectively used in various applications in corrosion prone areas, mainly in chemical processing equipment (transport and storage, pressure vessels, tanks, piping and heat exhaust), oil & gas exploration (process equipment, pipes, tubing, marine & other high chloride environments), pulp & paper industries (digesters and bleaching equipment), food processing equipment and biofuel plants.
SAIL’s Salem Steel Plant is a special plant which specialises in production of quality stainless steel.
Earlier, SAIL-SSP developed duplex stainless steel (SS 32202 grade) having 0.4 percent molybdenum content and has already serviced the orders for it.