Tuesday, January 26, 2010

[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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