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Recent content by MarlaMike

  1. MarlaMike

    Qualifications for Design Calculations

    Thanks for all the comments Guys, we are indeed based in the UK. No license is applicable and like what others have said anyone can call themselves an engineer. However in this case we own the patent to this product and have done for 20 years or more so the design has been pretty much well...
  2. MarlaMike

    Sampling for mechanical testing of Flanges 32"

    Astm A105 only required tension test per cast/heat treatment Batch, so if they are the same heat code and heat treated at same time one test blank should be sufficient provided it is heat treated at same time and conditions.
  3. MarlaMike

    Forgings in ASTM A105 normalised at -20¦F (-29¦C)

    Also bear in mind ASTM A105 is not required to be heat treated in class 150 rating. Mike
  4. MarlaMike

    Qualifications for Design Calculations

    Hi My company produces weldoflanges and have a program that does the basic calcs to asme b31.3. The program is third party verified and the company holds a Type approval. My question is we have two engineers operating the programs and poducing the calcs by entering pre-determined data. Do...
  5. MarlaMike

    Nominal Wall Thickness for 3'' Sch 80 Elbow and Tee

    Hi Guys Sorry to interupt but its worth noting that ASME B16.9 only governs the wall thickness of the fittings at the extreme ends, basically therefore the thickness at the middle could be anything. It is common practice to use say sch100 pipe to make the fittings and just remachine the ends...

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