Stainless Steel Duplex 2205, UNS S31803 Cylinders and Stainless Steel Super Duplex 2507 Sampling Cylinder, UNS S32750
Duplex 2205 and 2507
The amalgamation of chromium, molybdenum and nitrogen convey the good resistance of Duplex and Super Duplex Sampling Cylinder to chloride pitting and crevice corrosion. This resistance is tremendously important for services such as marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. The high chromium, molybdenum and nitrogen contents of Duplex and Super Duplex Sampling Cylinder provide corrosion resistance superior to mutual stainless steels, such as, 316L and 317L in most environments.
The benefit of a Duplex and Super Duplex Sampling Cylinder is that it combines the constructive qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance).
Duplex and Super Duplex Sampling Cylinder is a cost effective solution for many applications where the stainless steels are susceptible to chloride stress corrosion cracking. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. Cumulative temperatures also increase the susceptibility of stainless steels to stress corrosion cracking.