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  1. ZHA

    Bronze c83600 welding to carbon steel

    Hello All! Does anyone have an experience of welding Bronze c83600 welding to carbon steel. Design code is B31.3 and welding code is ASME Sec IX. I don't see any articles online. Any input on welding process, filler wire, preheat, Interpass, shielding gas will be greatly appreciated. Thanks!
  2. ZHA

    PQR Corrosion Test fail per ASTM A923 Method C

    The ferrite test and the corrosion test came out to be good. Thanks all for their input. We used 98 Argon 2 Nitrogen as the shielding and purging gas.
  3. ZHA

    PQR Corrosion Test fail per ASTM A923 Method C

    EdStainless - Thanks for the info but I have seen certain customer specifications where they are not allowing more than 2% Nitrogen. Have you guys seen such restrictions? Just an update we have welded a coupon with 98 Argon - 2 Nitrogen and I am waiting on the results now.
  4. ZHA

    PQR Corrosion Test fail per ASTM A923 Method C

    minibenny - Did you use 98Argon-2Nitrogen for purging also?
  5. ZHA

    PQR Corrosion Test fail per ASTM A923 Method C

    100% Argon for shielding and backing.
  6. ZHA

    PQR Corrosion Test fail per ASTM A923 Method C

    Hello All, Hope all are healthy and safe! I had a question related to the corrosion test and ferrite test. Construction Code – ASME B31.3. We did a Duplex PQR and it needed to be: 1) Corrosion tested per ASTM A923 Method C. (Temperature - 25 C. Time - 24 hours) 2) Ferrite point count method...
  7. ZHA

    ASME B31.8 Impact Tested Thickness range for WPS

    Construction Code - ASME B31.8 Material - API 5L X52 and API 5L X60 MDMT - Minus 20 F Wall thickness - 3/8" While preparing WPS, is there any thickness limitation for the base metals as it is for B31.3 (t/2 to t+1/4"). I didn't see it though in the code or is the Sec IX the governing code? Regards,
  8. ZHA

    Stabiliztion heat treatment for stainless steel

    Code - ASME Sec IX. Material on PQR - 347H SS (1.338" Thick) I have a PQR with the following heat treatment cycle. One single cycle, AMB to 1000°F (@400°F/hr) hold 1.8 hrs , 1000-2025°F (400°F/hr), hold 3hrs, cool @ 200°F/hr to 1650°F hold for 5.5 hrs - cooled in still air. Can I use the above...
  9. ZHA

    Supplementary PQR

    Hello All, Code - ASME Sec IX If I have a supplementary PQR with impact testing only, then does it need to have the same Heat Input as that of the original PQR? Regards,
  10. ZHA

    QW-407.2 of ASME Sec IX (PWHT Time and Temprature)

    Thanks David339933 for your reply. Construction code is ASME B31.3 and impacts are applicable. Now would QW-407.2 be applicable to BASE MATERIAL?
  11. ZHA

    QW-407.2 of ASME Sec IX (PWHT Time and Temprature)

    Good Morning All, Is QW-407.2 applicable to base materials of the production welds too or is it just applicable to the Weld Metal and HAZ. If it is applicable to the base materials, where is it mentioned in ASME Sec IX? Regards, HMN
  12. ZHA

    B165 (UNS N04400) to A 790 (UNS S31803/S32205) Welding

    Thanks Metengr for your reply. It is a fillet weld on job for which we are doing a PQR.
  13. ZHA

    B165 (UNS N04400) to A 790 (UNS S31803/S32205) Welding

    Hello All, What TIG welding wire should be used for the above combination of the base material. API 582 does not have above combination. Can someone help on this one? Regards, Himanshu Naik
  14. ZHA

    Weld316/316L BM with ER 347 SAW Wire + P2000 flux and 317/317L BM with ER 347 SAW Wire + P2000 flux

    The customer spec says to use the same filler wire on WPS as on PQR and I was thinking of saving a PQR. I would have to weld 2 different PQRs now just to match the filler wire same as the PQR. Needed to know the technical aspect from the chemistry point of view. Thanks for the help Weldstan...
  15. ZHA

    Weld316/316L BM with ER 347 SAW Wire + P2000 flux and 317/317L BM with ER 347 SAW Wire + P2000 flux

    Hello All, With reference to the subject, can I do that? The only issue I see with ER347 wire is the Ni is on a lower side 9-11 compared to 10-14(316/316L) and 11-15(317/317L)and also on Moly. I couldn't find anywhere it asks to use or restricts to use. No impact required on job. Per sec IX, I...
  16. ZHA

    Which Weld Consumable to use

    - Metengr - 1/2" thickness and yes we intend to do PWHT - Weldstan - I agree. I plan to go with ER100S-G - Dhurjati - You cannot use ER70S-2 since the tensile strength is less than that of the base material. X65 has a tensile strength of 78 Ksi. Thanks and Regards, HMN
  17. ZHA

    Which Weld Consumable to use

    Hello All, Design Code - ASME B31.3 I have a dissimilar weld between API 5L X65 and A519 TP 4130 material coming in one of our jobs. X65 has chemistry of 0.08 - 0.2% C, 0.15 - 0.4% Si, 1 - 1.35% Mn, 0.4% Ni, 0.3% Cr, 0.15%Mo 4130 has chemistry of 0.28 - 0.33% C, 0.15 - 0.35% Si, 0.4...
  18. ZHA

    Crack in BM - 316/316L

    This is the second picturehttp://files.engineering.com/getfile.aspx?folder=ddb0abd2-e6c5-4411-b922-5c95a8f7593c&file=Crack_in_316L_2.jpg
  19. ZHA

    Crack in BM - 316/316L

    All, Weld joint between elbow to pipe (8" Sch 40S). Material - 316/316L Filler Metal used - ER316/316L One half of the weld was welded during the night shift and the other half was supposed to be started today morning. But when the welder started welding on that, he said it welded like Aluminum...
  20. ZHA

    Gmaw-Machine Qualifies for FCAW-Machine?

    Metengr - I reckon the interpretation answers my question but the word 'Welding Operator' is missing in that interpretation? Lol David339933 - I know it's the same when it comes to GMAW(Pulse, Spray and Globular) and FCAW for Performance qualification of welders. I just wanted to see where is...

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