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  1. JT0202

    AWS D1.1 2020 Group I to Group II Material PQR

    I am trying to see if there is a clause that allows to qualify Group I to Group II material and qualifies I to I, I to II and II to II. I know if you do Group II to Group II it coveres the above (those combinations), but if there are impact requirements, the above (with the qualification II to...
  2. JT0202

    ASME QG-106.4

    Interpreting this section, it looks like a procedure qualification can be qualified by two organizations, regardless of which one conducts the qualification, and the qualification shall be valid for both organizations, correct? " QG-106.4 Simultaneous Procedure Qualifications. When expressly...
  3. JT0202

    B31.3 Table 323.3.4-1

    Hi everyone, We have a tested PQR at 5.99mm thick CVNs were tested subsized with 10x3.3mm @ -65.4C per table ASME B31.3 323.3 (323.3.4 (b) and Table 323.3.4.-1) the WPS is valid for MDT down to -54.4C with the temperature correction, correct? the calculations I did were: - 5.99mm has 8.03C...
  4. JT0202

    ASME V Sensitivity 1-2T

    Hello, I have some questions for the RT inspection of Carbon Steel 14" OD x 0.75" WT. I need to achieve 1-2T sensitivity, and would like to know the requirements. Per Article 2, IQI designation would be 7 and we would have to achieve to see 2T hole. In regards to the wiresize, what do I need...
  5. JT0202

    ASME V Sensitivity 1-2T

    Hello, I have some questions for the RT inspection of Carbon Steel 14" OD x 0.75" WT. I need to achieve 1-2T sensitivity, and would like to know the requirements. Per Article 2, IQI designation would be 7 and we would have to achieve to see 2T hole. In regards to the wiresize, what do I need...
  6. JT0202

    Target number of cycles S-N Curve

    Hello, A weld was designed and tested to a BS 7608 E curve and now with the values obtained, number of cycles I wanted to calculate the target number of cycles to BS 7608 D curve but I am a bit lost. How do I calculate the target number of cycles for a the D curve per BS 7608 (I have the...
  7. JT0202

    Weld Repair 4330 mod

    All thank you for the great advice. It is nice to have some discussions and feedback like this. I agree there are thoughts in the industry that some try to match the filler metal strength and then have the consequent risk of delayed cracking and notch toughness. Others go for a lower strength...
  8. JT0202

    Weld Repair 4330 mod

    @ironic metallurgist As per SFA5.5, "in order to meet the alloy requirements of the "G" group, the undiluted weld metal shall have the minimum of at least one of the elements listed in this table. Additional chemical requirements may be agreed upon between the purchaser and supplier". Thank you...
  9. JT0202

    Weld Repair 4330 mod

    Looking to repair 4330mod 3/8" PJP on a 3" plate, V bevel. YS 122ksi ; UTS 135ksi ; CVNs avg 50ftlbs @-4F ; 277/285 BHN Will use E14018-G, although I have read also E8018-C3 can be used preheat 600-650F max interpass 750F PWHT 1100F for 3hr The results shall need to comply with CVNs avg 31...

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