RE: [MW:8256] Weld Macro examination

Dear Mr. Bilal,

Yes you are correct.

As per ASME Sec-IX, the Macro size of 10X to 20X is defined only for Tube to tube sheet welding.

But since the Macro picture will be too large for the Page to be printed, we get the photos of lesser magnification.

 

 

Thanking you,

Best regards,

 

Shadab Alam Ansari

Welding Engineer

 

For Gulf Heavy Industries Co

One of  Al-Bassam Group of Companies

 

Cell Phone No: 00966502090165, Fax No:0096633410105
Telephone No: 0096633400098 (5 Lines) Ext: 232

Email: ansari@ghi.com.sa

Web: "www.ghi.com.sa"

 

Save paper, don't print any emails unnecessarily. Let's save environment for future generation....

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Muhammad Bilal
Sent: Friday, November 12, 2010 12:06 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:8220] Weld Macro examination

 

Dear All,

 

As per my understanding Magnification for Macro exmination and what is reported in PQR are two different things. Maginification is what we should be evaluating any specific macro-section whether it is Tube to Tube sheet or any other cut piece. While the maginification of macro photo graph attached with PQRs is defined by many parameters likes printing/page size etc. The person who evaluated it, must have observed the macro specimen at required magnification but what he reported is based on photograph size.

 

Please do correct me if I am wrong.

 

Regards

On Thu, Nov 11, 2010 at 5:59 AM, Shashank Vagal <nach_sam@yahoo.com> wrote:

10x (also read 10X) is the limit for macro; the in-between magnification level choice is dependent on many factors related to the application, usually decided by the design engineer. --- On Wed, 10/11/10, pavainathan <pavainathan@gmail.com> wrote: From: pavainathan <pavainathan@gmail.com> Subject: [MW:8179] Weld Macro examination To: "Materials & Welding" <materials-welding@googlegroups.com> Date: Wednesday, 10 November, 2010, 1:31 PM   Dear members,                         I've a question about Macro examination in PQR's. What is the minimum magnifcation level we need to have? ,is there any reference standard/specification . One of my client spec syas it must be x5 .I have come across with various PQR review this magnification level is varying a range from x2.7 ,x3.4,x4.0&x5.0. Also is there any significance in referring the letter  in small case(x5) or Caps(X5) Any one can put your expertise in this regard. pavainathan -- To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com For more options, visit this group's bolg at http://materials-welding.blogspot.com/ The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

 

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