Re: [MW:31932] Using of Wrong Electrode for Dissimilar Joint

you have to remove all the mixing between the stainless steel and the low alloy steel electode

Στις Παρ, 8 Ιαν 2021 στις 5:18 π.μ., ο/η ilkinhasanov <ilkinhasanov.91@gmail.com> έγραψε:

Gents,

Site Construction team has made mistake and perform  welding of dissimilar joint (Storage tank (A312 TP 316) to Deck of Module (Carbon steel)  with wrong Electrode (E8018-G).Consequently weld has cracked. Joint configuration was a fillet weld with 8 mm leg length. Leg of tank is 55mm height. Site team is going to cut leg of tank approximately 20-30mm.
 
I think weld decay can cause crack of weld metal. I just want get your advise, if  we will try to repair it, what is a length of need to be removed from leg of tank to get rid of from affected microstructure zone? if site team will cut from leg 20-30mm , it will be enough or not?

Best Regards,
Ilkin Hasanov

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Dr. Georgios Dilintas,

Dipl. Ing. In Aeronautic and Space Engineering

Ph.D in Mechanics of Solids - Computational Mechanics

A.I.S, A.N.I, IRCA Lead Auditor

Welding, Stress Analysis, Corrosion, QA/QC, Failure Analysis, Risk Analysis

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