Saturday, September 18, 2010

Re: [MW:7083] Tube sheet to tube joint

Hi,
I said in this case with tube expansion with seal weld no need to do mockup test.still u want to do mockup then u use the actual tubesheet thickness plate with the tube and follow QW193.
 
Thanks & regards.
 
(Karthik)

Karthikeyan.S
QA/QC Manager
Getabec Energy Co.,Ltd.
379,Moo6,Soi8,Nikhomphatana,
Rayong-21180,
Thailand.
Phone: 0066 38 897035-8 (Off)
Fax: 0066 38 897034
Hand Phone: 0066 892512282


--- On Sat, 9/18/10, waman nilesh <wamannp@gmail.com> wrote:

From: waman nilesh <wamannp@gmail.com>
Subject: Re: [MW:7076] Tube sheet to tube joint
To: materials-welding@googlegroups.com
Date: Saturday, September 18, 2010, 10:15 PM

Hello Karthik,

Thanks for the reply but
1) I want to know where mock-up test are necessary & how it be done.
2) To maintain the tube expansion  percentage how much torque is require.
   Size of Tube 19.05 OD X 1.651 thk
   Thk of tube sheet is 75 mm.

With Regards,
Nilesh Waman 

On Sat, Sep 18, 2010 at 6:56 AM, Karthik <karthik6684@yahoo.com> wrote:
Hi,
You can use the existing WPS for the proposed one,since the P.Number and Group number are same.For seal weld (Tube expansion+seal weld) no need mock-up test).
Tube expansion percentage:
Light Expansion - 3% to 5%
Heavy Expansion - 8% maximum.
 
Thanks & Regards,
 
(karthik)

Karthikeyan.S
QA/QC Manager
Getabec Energy Co.,Ltd.
379,Moo6,Soi8,Nikhomphatana,
Rayong-21180,
Thailand.
Phone: 0066 38 897035-8 (Off)
Fax: 0066 38 897034
Hand Phone: 0066 892512282


--- On Sat, 9/18/10, waman nilesh <wamannp@gmail.com> wrote:

From: waman nilesh <wamannp@gmail.com>
Subject: [MW:7061] Tube sheet to tube joint
To: materials-welding@googlegroups.com, materials-welding@goolegroups.com
Date: Saturday, September 18, 2010, 12:18 AM

I have WPS qualify for plate( SA 240 TYPE 304 ) can i used for tube sheet ( SA 965 F 304L ) to tube joint with seal weld
& is it mandatory to do mock up for the same.
What percentage of expansion is required for tube ( SA 249 TYPE 304 L ) material
Size- 19.05 OD X 1.951 thk 
--
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.

--
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.

No comments:

Re: [MW:34832] Inquiry about Single Bevel with Back Grinding

Dear Uday, As per your question that one is called with backing only,Simple both side you are welding it is backing with strip or without st...