[MW:30084] Re: Heat treatment of WPS

first to think wps is for weld .so your weld is facing only pwht so you have to quailfy wps by pwht only , normalizing of dish head to do separately.if dish head is welded than wps to qualify with normalize + pwht in isngle coupon as per sec 9

On Monday, 12 August 2019 15:44:19 UTC+5:30, chiluka venkatramulu wrote:

Dear All,

Pl clarify the below.

One of vessel under fabrication will under go the fallowing heat treatments. (Material-516 G 70, shell-63 mm, dish end -75mm, dish end in one piece only)

• Dishends Normalising-2 cycle.
• PWHT for whole vessel.

Now shall I need to do all three heat treatment cycles to qualify WPS?

OR

Only two normalising cycles are enough?

Regards,

Venkatramulu

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