Golden Rule:- All codes including ASME Sec viii Div1, ASME B31.3, AS2885.2 pemit below dissimilar thickness welding:-
t1- WN Flange, t2- adjacent Pipe then following must be met: t1 ≤ 1.5*t2
In your case 1.5*t2 comes 6.75mm which is lesser than 7mm so welding is not permissible, below are 2 options you can go with:-
*Opt for a higher thickness pipe
*Put a transition Piece in between t1 and t2.
Regards,
Manpreet Singh
On Thu, 05 Apr 2012 08:45:13 +0530 wrote
>Could you please give ME your advice to carry out welding of 7 mm thick CS WN flange by tapering the thickness to match with approx. 4.5/4.4mm thick solid incolloy 8" Pipe. And which clause in AMSE B31.3 mentioned if it is allowedThanksFor: Kareem
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To post to this group, send email to materials-welding@googlegroups.com
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For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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