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Up Topic Welding Industry / ASME Codes / Tack Welding Pipe Butt Weld- ASME B31.3-328.5
- - By Nalla (***) Date 12-04-2011 22:06
Dear Experts
ASME B31.3 does not specify what is the right method for tack-welding,ie-
1- directly tack weld on the root
2 - use bullet/bridge tack welding

Most of the time both are accepted by Client inspectors.

What is right method and why?

Pls advise
Parent - By js55 (*****) Date 12-05-2011 13:35
There is no right method in that context. In general direct tacks are used for thinner wall or smaller bore pipe, bridge tacks for heavier walls or large bore.
It also may depend on how good your tackers are. There is a variety of criteria.
- - By lwsaku Date 12-20-2011 16:02
Señores, i trying to work with a sWPS B2.1-1-209-96  it is a GTAW/SMAW procedure, i want to use it whit ASME IX, but my supervisor don't let me because ASME B31.3 328.2.2 e) ; it says that the presure desing must not be superior to Class 300 B 16.5, the question is IS NOT POSIBLE TO USE IT FOR CLASS 900 OR SUPERIOR ?
Parent - By 803056 (*****) Date 12-20-2011 16:55
Look at your other post for a response.

Al
Up Topic Welding Industry / ASME Codes / Tack Welding Pipe Butt Weld- ASME B31.3-328.5

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