Please find the details as follows,
Say for example, take PQR No.2
E309LCbT0-1 + E316LT0-1 (6.5 mm Thk) Overlay on SA 387 Gr. 22 CL.2,
Specimen size (L x B x Thk) (mm): 69.86 x 34.15 x 6.65,
Former Diameter-1t (mm); 6.65,
Observation at 20 X: Sample broken in two pieces
Remark: Not Acceptable
Note: Sample bent so as to keep top surface of overlay in tension.
IIly, For other PQRs with O/L thk ranging from 7 to 11 mm, Sample
thickness taken 5.26 to 5.80 mm
Same results obtained as mentioned above.
So there is no question arising regarding cracks or micro structure.
This may help you to give suggestion.
Also, Customer is asking for the IGC test of Overlay PQRs.
Give your valuable suggestions
Regards
Jigs
On Oct 8, 1:08 pm, jignesh.r...@Linde-LE.com wrote:
> Dear Jignesh,
>
> It is understood that SA 387 Grade 22 class 2(ferritic) welded with
> Austenitic consumables. Request to share the location of test coupons and
> the test results.
>
> As informed, practice E carried out, were cracks observed on bent
> specimen? Was micorsturcture examination carried out ?
>
> Since, the weld joint would be diluted with parent metal ( in this case
> P22 ) , is IGC testing really required ? What is going to be proved if
> IGC passes or in other case fails ?
>
> In extreme conditions, IGC testing is required, establish undiluted
> thickness first, take IGC samples from undiluted weld joint, do the
> testing.
>
> With Best Regards,
>
> Jignesh R Rana
> Manager - QA & QC
>
> Linde Engineering India Pvt. Ltd.
> 38, Nutan Bharat Society, Alkapuri, Vadodara 390007, India
> Tel.: +91 265 3056789, Fax: +91 265 2335213 , Mobil: +91 90999 86019
> jignesh.r...@linde-le.com,www.linde-india.com
>
> This e-mail is confidential. If you are not the intended recipient, please
> notify us immediately. You should not disclose its contents to any other
> person nor use it for any purposes.
>
> jignesh makwana <jkmakwa...@gmail.com>
> Sent by: materials-welding@googlegroups.com
> 07/10/10 17:29
> Please respond to
> materials-welding@googlegroups.com
>
> To
> materials-welding@googlegroups.com
> cc
>
> Subject
> [MW:7437] Why IGC Samples of PQRs fail?
>
> Dear All, Dear Jeff, Please look into.
> Please find the attachment
> All the PQRs have been failed except one sr. no. 4 in IGC testing as ASTM
> A 262 Practice E.
> Can anybody suggest me any solution or any reason??
> Preheating @ 100 C
> Interpass @ 150 C
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>
> Details of PQRs.xlsx
> 14KViewDownload
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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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