Re: [MW:8658] Thickness calculation for weldolet

Hi

There is no calculation required, What I understood is that u want to prepare a PQR b/w weldolet and pipe, thcikness of weldolet is 21mm.
ist please specify pipe thickness, assuming it to be same as weldolet, Please refer to QW-451 to find thickness limits for Base and weld metal, if impact testing is required:-

Follow QW-403.6 for lower limits and QW-451 for higher limits
if not, follow QW-451 for lower and higher limits.

if weldolet and pipe thicknesses are different, please revert me with quantitative data.

more information would be required to give further explanation.

Regards
Manpreet Singh
Welding Engineer



On Fri, 10 Dec 2010 09:04:52 +0530 Srini wrote
>Hi,
>
>How do we calculate the thickness of the weldolet for welding
>procedure qualification? Code is B31.3 and ASME SECIX. Weldolet is 8"
>SCH40 Bonney forge. So is the thickness (B-C)/2 ie 21mm? Does the
>procedure qualification has to support base material thickness of
>21mm. The pipe is 8" SCH40. Which section of B31.3 or SEC IX would
>address the requirement for this attachment weld between pipe and
>weldolet?
>
>Thanks for your help.
>Srini
>
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