Skip to main content

Re: [MW:5690] stroge tank API 650

By Materials & Welding
We just had a lot of discussion in a project, API 650 only states that bottom should be "as flat as possible" this is not satisfactory for supervisors or owners...
 
 
Ing. Luis Albanés M.
 
El Salvador
cel 503 77387661
Skype: albanes61
fax 1 303 479 6738


--- El lun 21-jun-10, Suresh <bobsuresh24@gmail.com> escribió:

De: Suresh <bobsuresh24@gmail.com>
Asunto: Re: [MW:5685] stroge tank API 650
A: materials-welding@googlegroups.com
Fecha: lunes, 21 de junio de 2010, 9:59


Dear  Ramesh,
 
We have been faced same problem in our previous project.I agreed with you that API 650 does not stated clearly about bottom plates distortion.
 
In best my knowledge we need to minimize the distortion as much as we can during welding.I strongly recommended you to use low heat input and use good condition automatic welding machine.
 
Thanks
 
Suresh
 
QA/QC Specialist
On 6/21/10, Ramesh <ram2ram_2000@yahoo.com> wrote:
Dear all,
can any one explain storage tank bottom plate thermal distoration due to welding as per API 650 how we get the tolernce of expect peaking, banding,plumpness,and other.only bottom plate waveness tolerence not shown extally.

 
 
 
 

Thanks and Best Regards,

 Balakrishnan Ramesh

QA/QC Dept

QA/QC Inspector.Tanks/Silos

Daelim Saudi Arabia Co.Ltd

Value Creating Global Plant Builder

 SAUDI KAYAN HDPE PROJECT

8 ram2ram_2000@yahoo.com

      jayak@daelim.co.kr

 (KSA #-+966530647157

 

 
 
 
 


--- On Mon, 6/21/10, KASHKOUSHA <kashkousha1@yahoo.com> wrote:

From: KASHKOUSHA <kashkousha1@yahoo.com>
Subject: Re: [MW:5682] weld SA-106 to 9 Cr materials P No 5B gr 1 or gr 2
To: materials-welding@googlegroups.com
Date: Monday, June 21, 2010, 12:45 PM

dear ahmed
yes,by using ER 90S-B9(GTAW)&E9018-B9 (SMAW) or E 9015-B9
the joint should be heat treated acc .to ASME B31.3

 
H.KASHKOUSHA

 

From: Ahmed Hafez <diesel2002@hotmail.com>
To: Welding Material <materials-welding@googlegroups.com>
Sent: Mon, June 21, 2010 1:42:17 PM
Subject: [MW:5681] weld SA-106 to 9 Cr materials P No 5B gr 1 or gr 2

good morning every one
is it applicable to weld SA-106 to 9 Cr materials P No 5B gr 1 or gr 2
 
thanks and best regard

Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. Sign up now.
--
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.
 

--
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.
 

--
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.



--
Thanks  & Best Regards,

Suresh

Mobile No: 91-92 92 905 905
--
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.

 

--
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

Post a Comment

Popular posts from this blog

Materails FAQs

By Materials & Welding
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...
21 comments
Read more

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

By Materials & Welding
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...
Post a Comment
Read more

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

By Materials & Welding
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, ...
Post a Comment
Read more