Qualify welding procedure supper duplex

[umi]

Hi friend,
I use Tig rode ER2549 to weld Supper Duplex thickness 8mm. However, it failed 2 times because ferrit content is out of requirement range (35-60%). On the other hand, Pitting corrosion also doesn't meet requirement. Pls give me advice (Range heat input, interpass temparature, U, I) for how to weld so that it pass.

[umi]

No body can help me

[camarradu]

..............

[umi]

Pls give me advise

[tassoss]

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[vfq3481]

Excellent Tassoss!!
THX!!!

[amitrajmane]

Thanks Dear,

Best Regards,

Amit

[umi]

thank alot for this book, but if you have experience. pls share to me by email: weldingengineervn@gmail.com

[tassoss]

thank alot for this book, but if you have experience. pls share to me by email: weldingengineervn@gmail.com

sorry but my only experience in super duplex is what it says in the books. You can also look at the attached document, there are some wps's in the last pages which you can adapt to your requiremetns.

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(p.s.: the correct rod for superduplex is AWS A5.9-06: ER2594 // EN ISO 14343-A:2007: W 25 9 4 NL)

[umi]

Manny thank tassoss

[sugiantoro]

Thanks alot