Re: [MW:14129] Re: regarding- thickness range for LTCS piping material for WPS

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

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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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