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Up Topic Welding Industry / Inspection & Qualification / cwi inspection
- - By shooterfpga (*) Date 04-11-2007 20:57
would a cwi call for a removal of all welds if you are using an e71t-gs wire, instead of nr211, even if the general notes only says to use a 70,000 tensile?
Parent - By js55 (*****) Date 04-11-2007 21:08
A CWI's responsibility is to determine compliance. Not to dictate course of action. Having said that there are a great deal of CWI's out there with experience enough to suggest the best course of action. And a great deal of them that do not have the experience. Ultimately it is up to the Engineer to determine course of action.
Parent - - By Lawrence (*****) Date 04-12-2007 01:57
E71T-GS are single pass electrodes... If the project was multiple passes than you would be out of compliance.

What is to be done about non compliance is as J55 reminded us, up to the engineer of record.
Parent - By js55 (*****) Date 04-12-2007 14:10
What it usually comes down to is economics. That is, given that all involved insist upon service integrity first of course.
What ever will be the least expensive course of action is the one usually taken. If you have just a few welds perhaps cutting them out is the most economical choice. If you have 200 welds another course of action could be considered.
Just because something is non compliant does not automatically require a cut out. I'm guessing that your CWI has justifiably determined you to be non compliant. Whatever course of action you take from here is up to your engineer.
Parent - - By 803056 (*****) Date 04-12-2007 18:27
Hello shooterfpga;

You don't mention if the CWI is a third party or an employee of the fabricator.

The third party CWI that is representing the "owner" should not be telling the fabricator "how to" or "what to" do. It is a bad habit that has cost many CWIs their jobs and forced them to look for new employment. The "owner's representative", i.e., the third party CWI, is not a consultant to the fabricator. Any suggestions made by the third party CWI can incur serious liability for the owner and the CWI's employer and is usually considered to be "interference" by the fabricator.

As stated by several other knowledgeable respondents, the engineer of record is the individual that needs to make the final call on what is necessary to correct a nonconformance. The third party CWI should be reporting any non-conformances to the engineer. The importance of the report and the information contained in the report can not be over emphasized. It is essential that the engineer has all the pertinent information needed to make an informed decision on what action is required. What may seem to be a serious nonconformance to the CWI may have very little consequence based on end use. The CWI rarely has the education or experience necessary to understand how the service loads and forces are accommodated by the design. The engineer is permitted by many codes to deviate from the code requirements provided there is justification for doing so.

In some cases the design professional that is responsible for the design will simply require the fabricator to hire the services of a consultant to "work a fix" for the problem reported by the CWI. However, the knowledgeable CWI is very careful not to put himself or his client at risk by demanding or specifying the corrective action required to correct a deficiency. Determining corrective action is not typically within the scope of the CWI's training or responsibility. Reporting non-conformances is the primary function of the third party CWI that represents the owner.

Best regards - Al
Parent - - By RANDER (***) Date 04-12-2007 21:31
Well said Al.
Parent - - By 803056 (*****) Date 04-12-2007 21:41
I'm sure there will be other opinions expressed, but thanks.

Al
Parent - By shooterfpga (*) Date 04-13-2007 01:41
thanks for explaining this in detail, and no i was not found to be out of compliance.
Up Topic Welding Industry / Inspection & Qualification / cwi inspection

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