About duplex 2205 Plate
In the past, the steel normally used in the plate air-cooler and plate shell heat exchangers was the grade, austenitic 1.4404. these plates normally have a service life of no more than 3 months. Using austenitic 1.4404 severe corrosion has been detected after only 1 month in operation. Plate air-cooler and plate shell heat exchangers are exposed to operating conditions with temperatures of up to 140 °C and 170 °C respectively as well as chloride content of hundreds of parts per million (ppm). Engineers first started experimenting with 2205 Plate as a replacement for austenitic 1.4404 six years ago, attracted by the high strength and corrosion resistance of the duplex grade. The engineers wanted to change the plate design to increase heat transfer in the heat exchangers.
When first considering duplex steel 2205 for plate air-cooler and plate shell heat exchangers. The engineer’s team hit a problem with their new design which required complicated forming. Duplex grades feature only moderate elongation and limited formability compared to austenitic grades. Reference:http://www.calicometal.net/duplex-steel-2205-plate-pipe-fittings-manufacturer-supplier.html
