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.SQA/QC ManagerGetabec Energy Co.,Ltd.379,Moo6,Soi8,Nikhomphatana,Rayong-21180,Thailand.Phone: 0066 38 897035-8 (Off)Fax: 0066 38 897034Hand 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 ) materialSize- 19.05 OD X 1.951 thk
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