Skip to main content

[MW:11458] Re: PQR conversation -20 deg to -40 deg

Mr. Vimal,
You must qualify another PQR for this application. If you had
performed impact testing to -40°F in the beginning, the PQR could have
been used in applications where the MDMT/ CET is specified to be -20°F
without any repercussions. Hope this helps!

On Jun 23, 2:40 am, Vimal Mistry <vimal.mis...@suzlon.com> wrote:
> For ASME SEC-IX
>
> From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of sudhakar kuppuswamy
> Sent: Thursday, June 23, 2011 10:26 AM
> To: materials-welding@googlegroups.com
> Subject: Re: [MW:11439] PQR conversation -20 deg to -40 deg
>
> dear Mr Vimal can you specify for which code ur working for. example ASME SEC 9 or AWS D1.1 etc..
>
> with regards,
> sudhakar.k..On Wed, Jun 22, 2011 at 3:38 AM, <vimal.mis...@suzlon.com<mailto:vimal.mis...@suzlon.com>> wrote:
>
> Dear All.
> I have PQR with -20 deg Impact & Values are 180 to 194 J Now I require
> PQR with -40deg Impact so can I go through same PQR with  -40deg
> Impact or I should qualify another.
>  If it's acceptable then which std/ spec. can be use as ref.
>
> Vimal
>
> --
> To post to this group, send email to materials-welding@googlegroups.com<mailto:materials-welding@googlegroups.co­m>
> To unsubscribe from this group, send email to materials-welding+unsubscribe@googlegroups.com<mailto:materials-welding%2Bu­nsubscribe@googlegroups.com>
> For more options, visit this group's bolg athttp://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.
>
> --
> With regards,
> Sudhakar.k
> --
> 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 athttp://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.
>
> - Disclaimer--
>
> This email and any files transmitted with it are confidential and may be privileged or otherwise protected from disclosure and are intended solely for the use of the entity / individual to whom they are addressed. If you have received this email in error or If you are not the intended recipient, please notify the sender immediately by way of telephone or email and delete this message and any files transmitted from your system. Please note that any views presented in the email are solely those of the author and do not necessarily represent those of the organization. While all care has been taken to avoid viruses the recipient is advised to check this email and attachments for presence of viruses. The organization accepts no liability on this account.

--
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.

Comments

Popular posts from this blog

Materails FAQs

Q: What are equivalents for standard Q 235 B (and Q 235 A) for U-channels? (asked by: boris.vielhaber@vait.com) A: DIN Nr. = 2393 T.2, 2394 T.2, EN 10025 W. Nr. DIN 17007 = 1.0038 Design DIN 17006 = RSt 37-2, S235JRG2 (Fe 360 B) Q: What is St DIN 2391 BK material? (asked by: dmcandrews@automaticstamp.com) A: Precision steel tubes, cold-finished/hard. Q: What is C.D.W. Boiler Tube? (asked by: montydude123@yahoo.com) A: Cold Drawn Welded Boiler Tube. Q: WHAT IS W.Nr. 1.4301? PLS TELL US IN EASY LANGUAGUE (asked...

Heat tint (temper) colours on stainless steel surfaces heated in air // Heat tint

Introduction The colour formed when stainless steel is heated, either in a furnace application or in the heat affected zone of welds, is dependent on several factors that are related to the oxidation resistance of the steel. The heat tint or temper colour formed is caused by the progressive thickening of the surface oxide layer and so, as temperature is increased, the colours change.   Oxidation resistance of stainless steels However, there are several factors that affect the degree of colour change and so there is no a single table of colour and temperature that represents all cases. The colours formed can only be used as an indication of the temperature to which the steel has been heated. Factors affecting the heat tint colours formed Steel composition The chromium content is the most important single factor affecting oxidation resistance. The higher the chromium, the more heat resistant the steel and so the development of the heat tint colou...

Re: [MW:10788] ON PLOT PIPING & OFF PLOT PIPING

Piping systems involved for the flow lines and gathering lines from the well head isolation valve to the production facility or processing plant isolation valve are determined as OFF PLOT. ON PLOT defines piping system in the processing plant and production platform. ANSI/ASME B31.4 applies for off plot piping system. B31.4 allows the use of either API 1104 or ASME section IX (as appropriate). However, occasionally, a very small system such as piping within 500 feet of a processing plant (some client also said 400 feet) may be declared B31.3 rather than B31.4. When B31.3 is invoked, only ASME Section IX is used. before you decide which code to use for welding procedure and/or welder qualification for pipe welding, you have to know the design and construction code applicable to the system. Please read far enough into scope and diagram illustrating the application of either B31.3 and B31.4 hope this helps rgds 2011/4/21 pradip kumar sil < pradipsil@gmail.com > Dear all, ...