SAF 2205

SAF 2205, also known as Sandvik SAF 2205, is a Sandvik-owned trademark for a 22Cr duplex (ferritic-austenitic) stainless steel. SAF derives from Sandvik Austenite Ferrite. The nominal chemical composition of SAF 2205 is 22% chromium, 5% nickel, 3.2% molybdenum and other alloying elements such as nitrogen and manganese.^[1] The UNS designation for SAF 2205 is S31803/S32205 and the EN steel no. is 1.4462.

Typical properties of SAF 2205 duplex stainless steel are:^[2]^[3]

high resistance to stress corrosion cracking (SCC) in chloride-bearing environments
high resistance to stress corrosion cracking (SCC) in environments containing hydrogen sulphide
high resistance to general corrosion, pitting corrosion, and crevice corrosion
high resistance to erosion corrosion and corrosion fatigue
high mechanical strength - roughly twice the proof strength of austenitic stainless steel
good weldability

References

^ [1], Material datasheet for SAF 2205 (seamless tube and pipe) issued by Sandvik 2011-01-21
^ [2], engineeringtalk.com article Jun 20, 2008
^ [3], matweb.com Sandvik SAF 2205 Seamless tube and pipe

External links

Technical data for SAF 2205 (seamless tube and pipe)

[1] [1], Material datasheet for SAF 2205 (seamless tube and pipe) issued by Sandvik 2011-01-21

[2] [2], engineeringtalk.com article Jun 20, 2008

[3] [3], matweb.com Sandvik SAF 2205 Seamless tube and pipe

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See also

References

External links