Re: [MW:16894] RE: 16879] PMI on Stainless Steel Welds

Dear Binoy,

I totally agree with Mr. Nopadon. 

Just to add on, check whether PMI has been done at Manufacturer location before delivery to your location. Request for the Report. Usually, PMI is a cross verification to confirm that no mix-up of  material. This verification can be 5%-10% of total lot of same Heat No.

Regards,

Vino, Doha

 

On Wed, Feb 27, 2013 at 8:24 AM, <c.nopadon@vipco-thai.com> wrote:

Dear Mr.Binoy,

 

Not necessary , it depends on project spec. and how confident in working system.  For me , we will perform PMI internally anyway to double check correct material grade and correct welding rod.

Be aware that some PMI spec. require to check Carbon on high or low carbon stainless such as 316L or 347H , etc.  Normal PMI cannot perform this check and you have to use portable spectrometer which will be much more costly.  You have to review PMI spec. and material you are welding carefully.

 

Regards,

C.Nopadon

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Binoy Soman
Sent: Wednesday, February 27, 2013 1:10 AM
To: materials-welding@googlegroups.com
Subject: [MW:16879] PMI on Stainless Steel Welds

 

 

Dear Experts,

 

In a project, Is it always necessary  to do PMI on all Stainless welds or whether it is a clent requirement only. Code followed is ASME B 31.1

 

S.Binoy

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