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Do bottom plates of API tank can be butt-welded?

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Orangel

Orangel

Mechanical
Joined
Jan 22, 2006
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11
Location
VE
Hello.

I am inspecting a tank in construction, which diameter is 32 ft and total height is 31.5 ft. The plates of the bottom was welded by means of butt-weld junction. Is this allowable by API 650?

Regards,

Eng. Orangel Roca
Caracas, Venezuela
 
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Yes, see section 5.1.5.5
it is required for some tanks, see AL.5.1.1, I.7.4, J.3.1.5, etc.
 
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Further, a butt-welded floor is significantly stronger that a lapped & fillet welded one. Butt-weld vs. single fillet weld.
 
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