Re: [MW:27007] WPS REG

Hi,

Please find below the Code interpretation. 

Question: When nozzle or branch connections are attached to the wall or head of a pressure vessel, what are the basic criteria establishing procedure and performance qualification?

Reply: For groove weld procedure qualification, the base metal thickness range for all base metals being joined in addition to the deposited weld metal thickness range for each process used must be qualified in accordance with QW-451 (see QW-202.4). Also, see exemptions in QW-202 for fillet weld procedure qualifications. 

Thanks& Regards,

 

(Karthik)

Mobile: +66 892512282 
E-mail : karthik6684@yahoo.com

On Saturday, November 18, 2017, 4:07:17 PM GMT+7, Subrata Das <subrata19732111@gmail.com> wrote:

Dear Experts,

Please guide me for test coupon thickness to be considered for below case

- Vessel thickness 14.27mm

- Nozzle thickness 40mm

- Set in type Nozzle on Vessel shell

- Full penetration weld with fillet

- Impact test applicable

- No PWHT

Do I need to consider Nozzle thickness 40mm or Shell thickness 14.27mm. Appreciate your reply in advance with Code clauses.

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