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  1. jmec87

    A Conceptual Modification to the Continuing Education Requirements

    The requirement for a minimum number of hours incentivizes engineers to get the hours necessary to tick the box and doesn't ensure competency. I don't think it is effective or efficient for engineers at any stage.However, it allows for easy determination of compliance to the requirement. Some...
  2. jmec87

    Oil flange redesign

    You can try to sell it as reducing the required length and weight of the flange/equipment - there could be some value in this in niche applications. Think of some applications where this could be useful and hope that your professor doesn't know better. However, as noted by others, standardized...
  3. jmec87

    API 6D - Specified Level for Hydrogen (SLH)

    This was an intentional choice by the 6D committee. They wanted to leave it up to the end users to figure out what SLH is appropriate for their application and risks, rather than specifying it for everybody. The end user / customer needs to figure it out using their own process (considering any...
  4. jmec87

    Social Media

    APEGA addresses social media specifically in a few places in their "Ethical Practice" guideline. The first three restrictions seem reasonable. The last one (allowing them to punish you for off-duty conduct that does not involve the practice of engineering or use of title) could be abused...
  5. jmec87

    Equivalent "Responsible Charge" requirements in Canada?

    In Alberta, the requirement is for the P.Eng. to "have completed, performed a thorough review of, or directly supervised and controlled the engineering or geoscience work and accept professional responsibility for the engineering or geoscience involved." The last option is similar to...
  6. jmec87

    API 6A standard 10000psi ball valve material selection

    1) The clamp would be considered an "Other End Connector" (OEC), so per Table 7, the material requirements are PMR (per manufacturer's requirement). So as long as it meets the design/stress requirements in Section 5, you can use whatever material you want. It may be difficult to meet the design...
  7. jmec87

    API 6A standard 10000psi ball valve material selection

    36K is the required specified minimum yield strength for the material to be able to use it for a 10,000psi-rated body. You cannot use 30K material regardless of thickness. You are not required to use ASTM specifications, so you can write your own 316 material specification with 36K minimum...
  8. jmec87

    Thread stress of pressurized valve cap

    This is pretty basic. How do you think you should calculate it?
  9. jmec87

    Courses on ASME VIII Div 2

    I've taken this course from Mr. Seipp and I thought it was good.
  10. jmec87

    Welding L-80 Type-1 Tubing to AISI 4130 Hammer Union

    This should be fine, as long as the chemistry, mechanical properties, and tempering temperature of the L80 tubing are suitable for your qualified WPS and PWHT temperature.
  11. jmec87

    Hardness Values - API

    The API 6A material designations are based on the yield strengths but there is also a tensile strength requirement for each material designation. The hardness requirements are based on the ASTM A370 hardness equivalent for the tensile strength requirement for each material class.
  12. jmec87

    Tourist submersible visiting the Titanic is missing Part 2

    The two reports on the NTSB website go into more detail than the summary on the USCG MBI website. The outer surface was very wavy and there were very many locations where the wrinkles had been ground to allow the next layer to start without wrinkles...
  13. jmec87

    Tourist submersible visiting the Titanic is missing Part 2

    Karl Stanley summed up the problem with Stockton Rush's reliance on acoustic monitoring in one of the emails he sent to Rush in 2019 (after hearing sounds in the original hull that OceanGate eventually removed from service)...
  14. jmec87

    Tourist submersible visiting the Titanic is missing Part 2

    New documents have been added to the Marine Board of Investigation website, including a very interesting transcript of the meeting between David Lochridge, his boss, and Stockton Rush. https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/ A few points: 1. Rush wouldn't even...
  15. jmec87

    Tourist submersible visiting the Titanic is missing Part 2

    There's a lot of interesting newly released info at the link from IRstuff https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/ 1. Preliminary design report for the carbon fibre sub completed by Boeing (2013) - Suggests that it is feasible but acknowledges some of the risks...
  16. jmec87

    Traditional FEM Method(ANSYS- ABAQUS) or New Approach (Boundary value Method) in ASME SEC VIII Div2

    TGS4, regardless of the Part 5 requirements, do you think that any meshless methods / software are currently good / trustworthy enough to rely on for ASME Section VIII, Division 2, Part 5 analysis?
  17. jmec87

    Drawing material callout: "material XYZ or Eq."

    I think you are recognizing the risks with this - equivalency of different material grades is often unclear and could be interpreted differently by various parties. Advantages of including "or Eq.": - possibly reduced costs and/or lead times - less engineering effort required to correctly...
  18. jmec87

    API 6A

    The main requirements to obtain Q1 registration are: 1. Implement a quality management system that meets the requirements of API Q1 and operate for at least 4 months. 2. Complete an internal audit and management review per API Q1. 3. Apply to API for a Q1 license and pay the application fee and...
  19. jmec87

    API 6A

    You can not get a certification for API 6AR, but you can get API Q1 registration and include "Repair and Remanufacture of Wellhead and Tree Equipment in accordance with API 6AR" in your Q1 registration scope. It appears that only a few companies do this. Whether you are required to do this or...
  20. jmec87

    Exception to hydrotest

    It is up to the owner to classify fluid service, but natural gas would normally not be category M.

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