Monday, January 16, 2012

[MW:13484] Pre-heating for cutting

Dear Experts,
 
I need your help for this subject, We are fabricating some piping as per B31.3, the material ASTM A106 Gr.B, 8"Sch-XXS and 160 and we are doing preheat and PWHT for welding, but my enquiry pre heat is required for cutting also? It is mentioned in any code or any other were? Please help me
 
Jesti
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