The yield strength of 2205 duplex stainless steel is more than double that of ordinary austenitic stainless steel. This feature allows designers to reduce weight when designing products, and this alloy has a price advantage over 316 stainless steel and 317L stainless steel. 2205 stainless steel is especially suitable for use in the -50°F/+600°F temperature range. For applications outside this temperature range, this alloy can also be considered, but there are some restrictions, especially when used in welded structures.
The corrosion resistance of 2205 duplex stainless steel is better than that of 316L stainless steel and 317L stainless steel in most environments. Local corrosion resistance The content of chromium, molybdenum and nitrogen in 2205 duplex stainless steel makes it highly resistant to pitting and crevice corrosion in oxidizing and acidic solutions.
The duplex microstructure of corroded stainless steel helps to improve the resistance of stainless steel to stress corrosion cracking. Under the conditions of certain temperature, stress tension, oxygen and chloride, austenitic stainless steel will undergo chloride stress corrosion. Because these conditions are not easy to control, the use of 304L stainless steel, 316L stainless steel and 317L stainless steel is limited in this regard.
The high strength and corrosion resistance of 2205 duplex stainless steel make it have high corrosion fatigue resistance. Processing equipment is susceptible to corrosive environments and loading cycles, and the properties of 2205 duplex stainless steel are well suited for such applications.
