Hi
Please find below the excerpt from AWS D1.1
This is from B31.3
Preheating requirements shall always be mentioned in the applicable construction codes. If so mentioned in the applicable construction codes for cutting, then shall be followed as per that.
If preheating mentioned only for welding or if the WPS qualified with preheating, then it is applicable only for welding and NOT for cutting.
BR
M.Vijayan
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of jesti fer
Sent: Monday, January 16, 2012 12:52 PM
To: materials-welding@googlegroups.com
Subject: [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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