Procedure qualification

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chiluka venkatramulu

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Apr 6, 2020, 6:00:30 AM4/6/20
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Dear All,
A welding procedure is qualified with multiple PQRs as below
  1. 3.05mm
  2. 4.19mm
  3. 6.0mm
  4. 25.0mm
With impact requirement.
Now what is the thickness range qualified.

Thanks and regards,
Venkatramulu CH

Charles Jacob

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Apr 6, 2020, 6:05:36 AM4/6/20
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Hi dear,  are you using b31.3 as the construction code. 

Pl clarify, 

Regards, 

Charles  V Jacob 
 

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Raghuram Bathula

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Apr 6, 2020, 6:05:57 AM4/6/20
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What is your code of construction?
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chiluka venkatramulu

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Apr 6, 2020, 11:34:25 PM4/6/20
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Yes

With best regards,
Venkatramulu CH

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chiluka venkatramulu

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Apr 6, 2020, 11:34:25 PM4/6/20
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B31.3


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Kannayeram Gnanapandithan

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Apr 6, 2020, 11:34:26 PM4/6/20
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Ref ASME Sec 9, Ref QW 403.6. since Ur maximum thickness is 6mm, qualified is 1/2T. 

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sangram routray

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Apr 6, 2020, 11:34:26 PM4/6/20
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Dear venkatramulu,
What is your construction code & qualification code.
As per asme sec-ix .
The WPS Thickness should be 1.5mm to 50mm


Regards

Charles Jacob

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Apr 7, 2020, 12:51:17 AM4/7/20
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Hi dear,  

Hence you have mentioned that your code of construction is b31.3 , then the base metal qualified range becomes T/2  to T+6 mm.  This is applicable for each PQR thickness.  If there is a gap in the spectrum, then new PQRs need to be qualified to fill out the gap. 

Hope this helps,

Regards, 

Charles V Jacob 
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