Welding Duplex 2205 with SA 304

Donio · Aug 11, 2008

hello everybody. I have one question:
Is there problem at welding of Duplex 2205 with SA 304.
the vessel (130m2) is Duplex 2205 and his support beams is SA 304.
The temperature of the liquid is 90 °C

Thank you!

EdStainless · Aug 12, 2008

What does the Outokumpu welding guide recommend for 2205 to 304 welds? Check there first.

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Plymouth Tube

0707 · Aug 12, 2008

For your purpose type AWS 309 Mo with low carbon content,is better choice than SA 304.

REGARDS

luismarques

strider6 · Aug 19, 2008

It's a dissimilar welding, but there are no particular problems. Just foreseen a buttering with 309 electrode on the 304 and then complete the welding.
these articles can give u some good advise
DISSIMILAR METAL WELDS AND WELD JOINT DESIGN FOR DUPLEX
STAINLESS STEELS

http://87.230.33.128/_files/stainless_steel/IMOA_Shop_Sheet_104.pdf

http://87.230.33.128/_files/stainless_steel/IMOA_Shop_Sheet_105.pdf

PRACTICAL GUIDELINES FOR THE FABRICATION OF DUPLEX STAINLESS STEELS

http://87.230.33.128/_files/stainless_steel/Duplex_Stainless_Steel.pdf

http://www.corrosionist.com/Materials_Stainless_Steel_Welding.htm

S.

Corrosion Prevention & Corrosion Control