[MW:31997] WELDING OF SUPPORT PAD ON TANK SHELL OUTSIDE WITH FULL OF WATER

Dear Experts,

Can anyone explain to me regarding welding of a support pad on the outer surface of Tank Shell with inside full of water and what code we can refer for this activity or an old WPS we may follow which we used during the fabrication or another method we can use because inside water and we will weld against water hence it will affect the properties of material.

My thinking is that the water would provide a heat sink that would cause severe quenching of the weld and cause cracking.

if we do preheat that is also not possible because of water inside and we can't control the preheat upto desired criteria.

Tank Shell LTCS material

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Regards,

MD. SHOAIB ALAM

QC INSPECTOR (MECH)

WHR PROJECT, ADNOC

IWI LIMITED, ABUDHABI

Phone no: +971-565820166 (UAE)

                  +91-8879380116 (INDIA)

     

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