This is the 1st time I have seen inconsistent results of CVN tests.
As you see the below photo, the notch location is in the middle of weld metal.
@SJones @DekDee @EdStainless @weldstan Thank you very much for taking the time to share your valuable opinions. Based on the discussion, I believe...
Hi experts,
According to ASME Section IX, is it acceptable to combine the qualified thickness and diameter ranges of a welder across multiple performance qualification tests for the same welding process?
As per QW-301.2, "each organization shall qualify each welder or welding operator for each...
I am sure that no tearing or chatter at the notch.
Yesterday, I changed the CVN test to another test lab.
At the first set, results of absorbed energy are 12J, 43J, 85J.
The second set, results are 53J, 33J, 28J.
The CVN results of ER70S-6 in certficate are 151J, 153J, 147J in 1G position.
It is...
Hi experts,
Could you please share your experience regarding CVN impact testing for ER70S-6 filler metal?
I’m currently qualifying a PQR for A333 Gr.6 to API 5L Gr.X65 using ER70S-6 (GTAW + SMAW).
When conducting the weld metal impact test (full-size specimens) at -46 C degree, I obtained very...
Hi experts,
The welder has just completed a weld on a Duplex stainless steel pipe (A790 UNS S31803). After welding, He noticed a significant misalignment between the tee and the pipe — clearly, the joint has distorted more than expected.
To correct this, he applied TIG arc heat onto the cap...
Hi everyone,
I'm currently working with EEMUA 158, but I’m finding the qualified diameter range a bit confusing. Could anyone help clarify how it actually works?
1. If the diameter of the tubular is below 508mm and not within ±50% of the
diameter qualified;
=> PQR with OD = 453mm (<508mm)...
@kingnero
Thanks bro. I searched for LB-52U already. But I just got as posted photo.
For other manufacturer such as Hyundai, Lincoln, Oxford,...,they mentioned quite clear, but not Kobelco.
