Skip to main content

RE: [MW:16634] MAGNETIC CHECK

ITS POSSIBLE IN A312 TP 304/316 CAUSED BY COLD WORK.
 
READ THIS ATLAS TECH NOTES
 

Date: Mon, 28 Jan 2013 08:59:11 +0100
Subject: Re: [MW:16621] MAGNETIC CHECK
From: lassaad.mokrani@gmail.com
To: materials-welding@googlegroups.com

Hello,
SS316 is not magnetic having some Nickel in it (opposite case for 400 Series of SS where ther's 0% Nickel)
Could you advise what kind of welding rodes/fill material you used?

Normally, if you used a fit SS fill material , no reason to have such a magnetic property. If so, the only one resaon, could be the duplication of Nickel in the weldments because of used of pre-heat which is not required.



2013/1/28 Chan, David <David.Chan@exterran.com>

Hi Experts,

We have an issue where the Customer is going around on the a stainless steel (S316L) using a potable to check on the materials and welds

 

He has checked on some areas near the weldment where there is a force of attachment and the magnet is still sticking to the area

The magnet drops off when the magnet is moving away from the weldment

 

I request for a technical understanding to clarify with the customer

 

Appreciate your kind assistance  

 

Thank you

Best Regards

 

David Chan

 

Republic of Singapore


--
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/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
 
 



--
Meilleures salutations

MOKRANI Lassaad
Consultant Civil Engineer
Tunisia
00216 20 649 755
http://www.linkedin.com/pub/lassaad-mokrani/16/364/907


















P     Pensez environnement! N'imprimez ce mail que si c'est vraiment nécessaire
Please consider your environmental responsibility before printing this e-mail


This e-mail is confidential and it is intended only for the addressees. Any
review, dissemination, distribution, or copying of this message by persons
or entities other than the intended recipient is prohibited. If you have
received this e-mail in error, kindly notify us immediately by telephone or
e-mail and delete the message from your system. The sender does not accept
liability for any errors or omissions in the contents of this message which
may arise as a result of the e-mail transmission

--
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/
http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm
 
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.
---
You received this message because you are subscribed to the Google Groups "Materials & Welding" group.
To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.
 
 

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, ...