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  1. Karik87

    CVN test at Weld Metal with ER70S-6

    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...
  2. Karik87

    CVN test at Weld Metal with ER70S-6

    The consumable certificate is 3.1 with CVN results as 151J, 153J, 147J in 1G position, Sir.
  3. Karik87

    Combine thickness and diameter qualified range of welder according to ASME IX

    Thanks DekDee! Now I got it.
  4. Karik87

    Combine thickness and diameter qualified range of welder according to ASME IX

    All the test coupon are pipe A106 Gr.B.
  5. Karik87

    Combine thickness and diameter qualified range of welder according to ASME IX

    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...
  6. Karik87

    CVN test at Weld Metal with ER70S-6

    No sir. It is tested at weld metal. Another test performed at other test lab. Please see my response above.
  7. Karik87

    CVN test at Weld Metal with ER70S-6

    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...
  8. Karik87

    CVN test at Weld Metal with ER70S-6

    No sir, we just witness the testing only.
  9. Karik87

    CVN test at Weld Metal with ER70S-6

    @EdStainless All notches were broached and checked the diameter.
  10. Karik87

    CVN test at Weld Metal with ER70S-6

    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...
  11. Karik87

    Heating duplex weld joint by TIG arc welding

    Thanks EdStainless. Can you plase advise me how to repair this joint.
  12. Karik87

    Heating duplex weld joint by TIG arc welding

    It will be cut out. But can you please advise me how to repair this weld joint?
  13. Karik87

    Heating duplex weld joint by TIG arc welding

    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...
  14. Karik87

    Diameter qualified range - EEMUA 158

    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)...
  15. Karik87

    Storage Condition of Kobelco LB-52U welding consumable

    @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.
  16. Karik87

    Storage Condition of Kobelco LB-52U welding consumable

    @MintJulep Thank you so much for your advice. Sure that LB-52U must be baked (dried) before using except the vacuum packed electrode.
  17. Karik87

    Storage Condition of Kobelco LB-52U welding consumable

    @MintJulep Appriciated your reply. Can you please advice me what high humidity value is? Because client request me mention the detail of temperature and humidity value in the procedure.
  18. Karik87

    Storage Condition of Kobelco LB-52U welding consumable

    Hi guys, I got the Safety Data Sheet of Kobelco LB-52U welding consumbale, and it mentioned the storage condition of LB-52U like this: How can we set-up a room without humidity? Is there anything wrong here? Can you please share me the experience to storage of LB-52U? What is temperature and...
  19. Karik87

    Filler Metal for welding of ASTM B148 C95800

    @bruv, Great! Many thanks bro. Is there any heat treatment required when welding @bruv? Can you please me more detail of it.
  20. Karik87

    Filler Metal for welding of ASTM B148 C95800

    @btrueblood @EdStainless Thanks a lot for your guidance and advice. I'll look into that information.

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