at what temperature ? https://www.google.co.uk/url?sa=t&r...Ztl1FCmorw4ZuCPKA&sig2=qYoStnOv-EE1r2uCFY9rGQ
Don't use it at 400 C http://www.aesteiron.com/stainlesss...el-type-duplex2205-astma789-seamlesspipe.html Link says above 300 C you get precipitation of brittle micro constituents.