2205 has been out there for a number of years – in general this complies with UNS grade designation S31803. More lately, product has turn into obtainable complying with the upper corrosion resistant composition UNS S32205, as in table 1. You are most likely to encounter 2205 stainless steel being utilized in industrial environments such as petrochemical, chemical, oil, gas and paper plants. The grade is mostly not suitable for use at temperatures above 300oC or under -50oC due to lowered toughness exterior this vary. High resistance to corrosion is required, e.g. resistance to higher temperature seawater.
- This mixture of properties can mean some compromise when compared with pure austenitic and pure ferritic grades.
- 2205 duplex chrome steel is a cost effective resolution for many purposes where the 300 series stainless steels are susceptible to chloride stress corrosion cracking.
- Although 2205 has good excessive temperature oxidation resistance, this grade, like different duplex stainless steels, suffers from embrittlement if held for even quick occasions at temperatures above 300oC.
- As a end result, duplex stainless steels display properties attribute of each austenitic and ferritic stainless steels.