Re: [MW:31793] Norsok M-601

root pass with cladding filler metal 

Στις Δευ, 23 Νοε 2020 στις 5:37 π.μ., ο/η Ali Asghari <asgharialigl@gmail.com> έγραψε:

Dear George.

Thank you for responding, but my question isn't related to your response, actually this statement siad when you have two clad components which want to be welded to each other, first base metal shall be welded and joined ,after that cladded parts.

Now what would be possible for welding of cladded small piping?

Regards,   

On Thu, Nov 19, 2020 at 3:02 PM George Dilintas <dilintas@gmail.com> wrote:

 If you deposit a cladding of 316 or 304 on a carbon steel, you may get hot cracking due to low Ferrite number. Therefore you deposit a layer of 309 which mixed with the carbon steel does not give hot cracking

Στις Δευ, 16 Νοε 2020, 16:38 ο χρήστης asghar...@gmail.com <asgharialigl@gmail.com> έγραψε:

Dear All.

Would you say what is the reason of this statement" When welding clad materials from both sides, the C and CMn steel shall be completely welded prior to welding the cladding. C or CMn steel or low alloyed steel weld metal shall not be deposited onto a high alloy base material or weld metal.'' ?

How is it possible for cladded piping?

Regards,

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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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