Hi, As per Code,Welding of pressure part cannot be done after PWHT. But there is an option is that,you can weld the non pressure part to pressure part with fillet weld and the throat thickness should not exceed 13mm and also you have to do preheat with minimum 95 degree celcius, If you meet the above criteria on your weld..you dont need to do PWHT again. Thanks & Regards, (Karthik) Karthikeyan.S Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282 --- On Wed, 8/18/10, sunilrathoreps@yahoo.com <sunilrathoreps@yahoo.com> wrote:
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