Hi all,
is there any tolerance for blasting surface roughness?. in this case the acceptance criteria is 50 - 100 micron, but what we achieved on site is 180 micron. is it still acceptable or any problem that may be occurred if there is excessive lasting surface roughness?. appreciate the advice.
Hi all, this is the actual site photo. Appreciate your advice on this.
And any consequence if we dont follow the minimum 300mm distance? Any integrity issue?
Thanks HTURKAK. Sorry i attached a wrong drawing. Attached drawing is the correct 3 laps joint. Current issue is the 3 bottom plate laps to each other. Is this consider as 3 plate laps joint also?. No lapping on the annular plate actually. Thanks.
Hi all, need your professional view on my case:
Our tank is fabricated following API 650 and now the concern is on 3 plate lap joint. We have 3 bottom plate that sit together and was welded with lap joint. Is this consider as 3 plate joint?.
This is the clause on API 650 section 5.1.5.4.2...