Advise for Weld defects during SAW Welding

[SMM]

Dear Experts, 

There are few issues found during SAW weld  cladding at site and are highlighted in the report. Please find attached report.

I have a few questions

1. Reason for such issue to occur. 

2. Is the issue of Flux (neutral basic flux) or Flux cored wire used in the process.

3. Please advise how can this be sorted out.

Thank you,

George

[P Goswami]

What’s the wire & flux make  being used. Do not provide the AWS grade alone , specify the make also. That’s important.

 

Thanks.

 

Pradip Goswami.P.Eng, IWE.

Independent Welding & Metallurgical Engineering Specialist

Consultant: SNC Lavalin Inc. (Nuclear &Non-Nuclear)

Saudi Aramco Approved Designated Project Welding Engineer (DPWR)

Qatar Petroleum Approved, SME-Materials & Corrosion Engineering.

Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/

Email:pgos...@rogers.com,pradip....@gmail.com

Cell/Whasapp:1-905-9793232

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[Mehrab Chakoshkar]

Hi

First, you should give us sufficient information such as the AWS Classification, the wire and flux name, and the ASTM name of the material.

second, seemingly your welding speed has been high, I can see the long beads in the welding direction.

third, sticking the slag usually happens when the A is too high and the cause of porosity usually is moisture in the flux, have you baked the flux before use?

Mehrab

[RANEESH PK]

because of very  high traveling speed and long weld bead. 

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[SMM]

Dear experts thank you for your valuable advises. 

The used consumables are

Wire : Cordiff 357 SA (Cr, Ni, Mo alloyed Tubular wire) Make - Diffusion

Flux: Supershield SS Flux ( Basic Flux, Neutral behaviour in terms of C, Cr, Ni & Mo pick-up or burn out)  Make: Super Alloys & Metals

Regards,

[SMM]

Thank you for the replies experts.

Wire used: CORDIFF 357 SA (Cr, Ni, and Mo alloyed tubular wire) Make - Diffusion
Flux used: SUPERSHIELD SS Flux Make - Super Alloys and metals (data sheet attached)

Regards,

On Wednesday, 26 April 2023 at 10:37:39 UTC+5:30 RANEESH PK wrote: