[MW:13214] RE: 13205] RE: 13203] Tack welder qualification

Both ASME Section VIII and ASME Section I have the following wording: "Tack welds to be left in place shall be made by welders qualified in accordance with Section IX . . ."

This appears in UW-31(c) and PW-31.1.3

- If the tack welds are completely removed prior to welding the joint, then tack welders do not have to be qualified.
- If the tack welds are to be incorporated into the joint (i.e. welded over after suitable prep and inspection), then the welder must be a welder qualified as appropriate for making the joint weld per Section IX.

John

-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Lakshman Kumar.B
Sent: Tuesday, December 13, 2011 9:25 PM
To: materials-welding@googlegroups.com
Subject: [MW:13205] RE: 13203] Tack welder qualification

Hi dear,

Nowhere or any code didn't specified for qualification method of a tack welder.

Tack welding is also a welding and which it needs to be done by a 100% qualified welder only and not having any short cut.

All the sub contractors are taking advantage by saying the name of tack welder.

-----Original Message-----
From: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] On Behalf Of samshuddin k
Sent: Tuesday, December 13, 2011 10:19 PM
To: materials-welding
Subject: [MW:13203] Tack welder qualification

Dear Experts
There is any clause in ASME Sec. IX for tack welder qualification.
Which Code explains tack welder qualification for piping regards Samshuddin.K

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