Weld on a non ASME coded tank
Weld on a non ASME coded tank
(OP)
I need to weld support fittings onto a 304SS non-ASME coded tank. Is there any issue with regard to tank integrity in doing this?
Jack
Jack
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Weld on a non ASME coded tank
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RE: Weld on a non ASME coded tank
Some suggested requirements;
1. Use an ASME qualified welding procedure specification
2. Use a welder that has some arc time or has welded a coupon
for the weld procedure qualification in (1).
3. Make sure the tank wall is clean of coatings, debris and
grease/oil.
RE: Weld on a non ASME coded tank
RE: Weld on a non ASME coded tank
RE: Weld on a non ASME coded tank
I would also suggest that you consider using "poison pads" onto which you weld the attachments. Make sure they have rounded corners, and are not welded all the way around so if any cracking occurs at the support to tank welds, propagation of these cracks would be restricted to the pad. You need to size the pad to ensure that you do not place too high point loading on the tank shell, so I would follow Code requirements to size the "poison pad".
In short, the connection detail needs to be designed to avoid shell over stressing - Code or Non-code tank.