Nandesh,
PWHT requirement is to be cross referred in line with Construction/Design code. In your mail, the applicable design code is missing. However, assuming the design code as B31.3 (2008) for piping, PWHT is mandatory for a thickness >20mm.
Regards,
Vasanth
From:
Sent: 26 January 2010 10:33
To:
Subject: [MW:4150] ASME SEC IX...PWHT?
| Dear All, For our LNG piping project, as per ASME SEC IX for a pipe 16 inch OD and Thk 21.44 mm PWHT is manadtory? We are welding root and hot pass TIG and others SMAW. Material is ASTM A333 . Thaks in advance Nandesh Kumar A |
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