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1/2" diameter WPQ qualified with Volumetric NDE
meteng. I am still in question on this scenario... Would it be acceptable to perform the WPQ for the referenced production application utilizing sch. 80, 2"nps and the 1/2"nps coupons instead of the way I qualified him with the three 1/2" coupons? The result being the welder is qualified for...- Pickaspot
- Post #3
- Forum: ASME (mechanical) Code Issues
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1/2" diameter WPQ qualified with Volumetric NDE
ASME Section IX QW-452.1 Thickness of weld metal qualified Production application 1/2" NPS (.840" OD) schedule 80 (.147" wall)open butt groove weld (GTAW out)P4 to P8. WPQ qualified with volumetric NDE, welder produced 3qty. 1/2" schedule 80 coupons meeting the 6" (QW-302.2)section IX...- Pickaspot
- Thread
- Replies: 6
- Forum: ASME (mechanical) Code Issues
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PQR hardness P5A to Incoloy Alloy 800HT
B31.3 code Reviewing my PQR lab results I have some concern in regards to the hardness results in the P5A HAZ. The highest Vickers(HV) reading was 284 this is with no PWHT being performed. I referred to the toughness test results and referenced B31.3 to which they are acceptable. I selected...- Pickaspot
- Thread
- Replies: 1
- Forum: ASME (mechanical) Code Issues
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PQR P4 to P8 questions?
Thank you meteng! Would it make sense to have the impacts to qualify this PQR for future WPS's? I believe once this PQR is qualified it will be good for welding each P-number to itself as well, just trying to maximize the PQR for alternative applications down the road? Again, thank you for...- Pickaspot
- Post #3
- Forum: ASME (mechanical) Code Issues
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PQR P4 to P8 questions?
The application this will be used for in the field is a steam line with a design temp of 869F and design pressure of 769 psig. The weld's are open butt on 1/2" diameter SA-335 P-11 to SA-312(316)both having a wall thickness of 0.147" The engineering spec requires that max hardness not exceed...- Pickaspot
- Thread
- Replies: 3
- Forum: ASME (mechanical) Code Issues
