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  1. PipinFool

    Heat input in wedling pipelines

    tfdavid, You say the operating conditions of the pipeline are different than the values in the welding procedure? In what regards? (flow rate, carbon equivalency, wall thickness etc.)
  2. PipinFool

    API 1104 Essential Variables

    Telles, Unless the procedure they provided you was written under the guidlines in Appendix B of API 1104, which then it will have CE information or flow rate information, then you are correct. For your job, it will have to be qualified either with the Grade 70 material or go to the highest...
  3. PipinFool

    Pipline Girth Weld External Reinforcement

    I am trying to find any ASME code requirement for the maximum hieght for external reinforcement (Cap pass). API specifies a maximum of 1/16", however, I am curious if ASME adresses this situation and if so, how? I appreciate any help you may provide. Thanks in advance, Mark
  4. PipinFool

    API 1104 Essential Variables

    Hexx, As per section 5.3.2.10 of API 1104 20th edition the time between the completion of the root pass and the start of the second pass, as well as the time between the second and start of other passes must be specified in the Weld Procedure Specification (WPS). This rule becomes an essential...
  5. PipinFool

    PQR Preheating

    I am in the process of establising some new PQR's under API 1104 code, section 5. The pipe grades to be tested will be the norm for the pipeline industry: X-42, X-60, X-65 and X-70 Weld Processes to be used: SMAW cellulose electrode SMAW cellulose + lo-hy electrode GMAW FCAW My question is...
  6. PipinFool

    API 1104 Pipeline Welding Inspection Personnel

    Regarding inspection personnel for visual weld inspection contained in API 1104 8.3 I would like to get a general sense of what qualifications for the individuals who inspect welds are the pipeline operators requiring in the United States and how they are achieving this. Certified Welding...
  7. PipinFool

    API 1104 WPS's and AWS Filler Metal Classification

    Thank you both. Steve, thanks for the section in A5.5, that makes this issue crystal clear.
  8. PipinFool

    API 1104 WPS's and AWS Filler Metal Classification

    This is one of those "ask six different people and get six different answers" questions! Section 5 of API 1104 (Welding Procedures) requires you to requalify a welding procedure on material 65 ksi and greater if you change a filler metal AWS Classification. My question is: Would changing...
  9. PipinFool

    API 1104 20th welder qual?

    As you may know, the 19th edition of 1104 contained an error in figure 12 under the welder qualification section. An errata was issued in 2001 but it only claimed the error in the greater than 12" diagram. I have ordered the 20th edition, but I need to know RIGHT NOW if the diagram in the 20th...

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