As per ASME Sec.IX QW451.1 thickness of test coupon is 1.5mm to mm means the thickness qualified limit is 1.5mm (Minimum) and 2T(Maximum).
In your case, If you use 7.11mm thickness specimen for PQR then the Thickness Qualified limit will be 1.5mm to 14.22mm.
Thanks & Regards,
(Karthik)
Karthikeyan.S
QA/QC Manager
German-Thai Boiler Engineering Cooperation Limited.
Rayong Factory ;
379 Moo.6 Soi 8, Tambol Pananikom,
Nikompattana, Rayong 21180 THAILAND
Tel : +66 38 897 035-9 Ext. 137
Fax : +66 38 897 034
Hand Phone: 0066 892512282
From: Raghuram Bathula <raghurambathula@gmail.com>
To: Materials & Welding <materials-welding@googlegroups.com>
Sent: Thursday, April 19, 2012 3:09 PM
Subject: [MW:14128] Re: regarding- thickness range for LTCS piping material for WPS
what is your design code?
As per ASME it will be T-2T, however for piping (B31.3) this range can
be used if PTC's are provided for the thickness ranges as specified in
Table 323.3.1, else it will be T to T+6mm
Best regards
On Apr 19, 10:42 am, Darshan Maheshwari <darshan.maheshw...@yahoo.com>
wrote:
> Can any body suggest what thickness range is applied for qualifying a WPS (for thickness 7.11mm) for LTCS piping material. Please provide reference also.
>
> Regards,
>
> Darshan Maheshwari.
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