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Re: Re: [MW:13649] Re: Applicability of Impact testing for Non pressure parts welded on non pressure parts (inside the vessel)

By Materials & Welding
Hi,

I would second Jignesh comments, BTW ASME Sec viii Div 1 does not explicitly discuss about
Impact testing of supports, Since these Skirts/supports are continuously welded to shell
becomes an integral part of vessel though still classified as "Non pressure Parts".

Both Material and welding procedure qualification shall be evaluated for MDMT of -46 deg c,
however if Design temperature was -29 deg C, you could get rid of impact testing (UG-20).

Suggest to use ASTM A516 Gr.70 as support material.

Regards
Manpreet Singh



On Thu, 09 Feb 2012 11:57:27 +0530 wrote
>
Dear Mr. Ali,



I like to share my views on this subject and let's concentrate discussions on ASME Section viii
Div. 1.



As per UCS-66, any attachment which is essential for structural integrity of the vessels when
welded to pressure retaining components shall be considered as separate component and to be
checked for impact testing w.r.t to material specification, MDMT and thickness limits.



Pl note that structural integrity of the part has to be confirmed by designer.





With Best Regards,



Jignesh R Rana

Manager - Materials Technology, QA/QC & Standards



Linde Engineering India Pvt. Ltd.

'Linde House'

Opp: VUDA Office, VIP Road, Karelibaug,Vadodara - 390018, India.

Tel.: +91 265 3056789, Fax: +91 265 2335213 , Mobile: +91 90999 86019

jignesh.rana@linde-le.com, www.linde-india.com



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"mohd.qce" ---05-02-2012 21:35:57---dear aly, what absorb from ur mail is u mean to say WPS to
be impact tested



From: "mohd.qce"

To: "Materials & Welding"

Date: 05-02-2012 21:35

Subject: [MW:13613] Re: Applicability of Impact testing for Non pressure parts welded on
non pressure parts (inside the vessel)

Sent by: materials-welding@googlegroups.com







dear aly,



what absorb from ur mail is u mean to say WPS to be impact tested

correct.Then non pressure welding does not requre impact tested.u can

use WPS without having a impact tested.





regards,

mohd.



On Feb 4, 9:05 am, "Aly" wrote:

> Dear Expert,

>

> Kindly advise on following;

>

> Suppose I have a vessel with MDMT minus 48deg C, we have support plate (SP1)

> (inside the vessel) welded with vessels, on which I am going to weld another

> support plate (Sp2),

>

> My question is whether this (SP1 & SP2) required to have impact tested to

> minus 46deg C or only SP1?

>

> Similarly would saddle supports of this vessel require matl with impact

> testing.

>

> Thank you in advance..

>

> Ali Mhaskar

> UAE

>

>  imstp_animation_butterflies_en_020908.gif

> 42KViewDownload



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