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  1. viper3982

    Laser Welding for repair

    Your welding engineer is telling you no. Sounds like you already have your answer.
  2. viper3982

    ASME Sec. VIII Div. 1 - Formed head inspection UG-90(b)(9)

    We receive formed heads of all sorts of sizes and schedule thicknesses. We typically rely on the supplier to perform the correct work. We will perform a check on the size/thickness as well as verify the heat# to the MTR. Typically we throw a tape measure across the opening and then a caliper on...
  3. viper3982

    Circumferential fillet on top of circumferential butt weld?

    ...with seal-welded fillets. Due to some odd circumstances, we were going to be forced to move the skirt up to directly where the head-shell weld is. *See below* The question is: Does ASME disallow this weld joint/attachment? What would this be considered? I tried scouring through the UG and...
  4. viper3982

    QW-403.6 Basis

    All, I am currently going though some issues with an impact tested weld procedure that also needs PED sign offs :( P1G1-P1G1 1.5" coupon GTAW root with SAW fill/cap. I completely understand that I need to use QW-403.6 and that it only qualifies me for a min weld thickness of 5/8. It's...
  5. viper3982

    Does anybody know what happened to

    Does anybody know what happened to B31.3 2018?
  6. viper3982

    U Stamp - brewery tanks?

    There are several shops that produce U-stamped brewing vessels. A company in southern Missouri produces several various vessels per week. They have a full-time AI. https://www.paulmueller.com/commercial-brewing-equipment/brew-kettle
  7. viper3982

    WPS/PQR

    Clients reject weld procedures all the time. I doubt I have a pass rate as high as 20% with our WPS'. They meet ASME, CRN, and PED; yet customers continue to ask for specifications beyond standard/outside norms. Charge them 300% mark up of what it would cost you to re-qualify a new procedure...
  8. viper3982

    Welding Gr.22 to Gr. 91

    We use ER90S-B3 for GTAW, FCAW. Sub arc we use B9 Just be aware the concerns with dissimilar metals welded to P91; the EPRI group has a LOT to say about concerning temperatures, PWHT, metal chemistry, etc.
  9. viper3982

    Can't Find a Wrench

    dvd: You have to be careful with that; many locations would hand you your a** for using a 'homemade tool'.
  10. viper3982

    Can't Find a Wrench

    Does it have to be open end? https://www.grainger.com/product/RIDGID-Aluminum-48-Straight-Pipe-4NV22 Usually for bolts and nuts that size you need to use a hydraulic system such as Hytorc or Enerpac.
  11. viper3982

    Quick solution for leakage at shell of condensate tank

    ...need a 'fast solution'. MJCronin is right.. The "Fast" solution is to CORRECTLY REPAIR THE VESSEL. If you buy off on any thing else; you will find out the very hard way that it was not as fast of a solution as you were hoping. *especially when in the future that liability-train comes rolling in
  12. viper3982

    How to evaluate Material certificates

    ...Most customers have a "NO CHINA" requirement or sometimes "No India, China, or former Eastern Soviet Block" requirement. This is because they *feel* less trusting of many suppliers from those countries have that 'care factor'. -EdStainless also has a good point. ISO/API often have...
  13. viper3982

    ASME Section 1 PG 52.3 Interpretation

    Standard Designation: BPV Section I Edition/Addenda: Para./Fig./Table No: Subject Description: PG-52.3, Circumferential Ligaments Date Issued: 06/29/1998 Record Number: BC98-160 Interpretation Number : I-98-15 Question(s) and Reply(ies): Question: Does PG-52.3 require the cross-sectional area...
  14. viper3982

    Best QC method for controlling failure rate in destructive testing

    ...shipped product. -You continue to buy from them. -There is no negative aspect for them aside from occasionally you charge them back for a couple rejects that YOU spend the money to test and find. -Now you want to give them a 'bonus system for quality improvements'. I wish *I* was your supplier.
  15. viper3982

    when giving weld size in ASME pressure vessel what standard should be followed AWS D1.1?

    Recommend you look at ASME B16.25 - Buttwelding Ends https://www.asme.org/products/codes-standards/b1625-2017-buttwelding-ends
  16. viper3982

    when 3 cycles for simulated heat treatment are required?

    Not unusual for Aramco. We usually end up just giving them a cost adder and perform 3 PWHT with lab testing at their cost. It's a customer spec. If they want to pay for it...
  17. viper3982

    Required Minimum Copper Content

    Copper-bearing steel is far from gone. It's just often called by the trademark name: Monel.
  18. viper3982

    Consumables for code case 2864 pipes

    It's not a code requirement but usually a customer req. See if you can look for MS-HRSG-0002 or DEP 30.10.60.18 as they both seem to be adopted by most. Others like to use API TR938-B.
  19. viper3982

    R-stamp required, or Corrected Copy of U1A? Vessel has not left manufacturer facility

    The customer should realize that they changed the scope of the project after the fact. Either they accept it with an R-stamp, or they accept a cost adder for scope change that is equal to the cost of building them a whole new unit. (We have had some picky over-seas offshore companies that...
  20. viper3982

    Pressure drop during hydro DIGITAL VS ANALOG

    JR/Moltenmetal, That is effectively what we have come up with and the AI agrees. The trick is trying to get that info across to the customer. You both provided the same answer but with a little better wording than I was originally using so thank you, I will try to re-phrase it with the customer...

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