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Recent content by kangomath

  1. kangomath

    Why need breathing hole on reinforce nozzle pad, do we have to block it after completion?

    Now NACE require that small hole shall not be plugged.. (NACE SP21534-2024 sect. 4.1.8.).
  2. kangomath

    Stainless stell for high temperature

    Thank you Ed... Actually it is a converter which will convert H2SO3 into H2SO4 in gas condition which I have no idea the concentration, and the temperature is 600 celsius. And yes, I preffer like 316Ti for this application..
  3. kangomath

    Stainless stell for high temperature

    Dear experts, My company will run a Sulfuric Acid Plant project. Our licensor require 316L material as converter and ducting shell material which will operate at 600 Celsius. I know 316L having good resistance in sulfuric acid. But with that high temperature, will 316L suffering intergranullar...
  4. kangomath

    Welder Qualification ASME with T Shape test coupon

    Thank you for all replies. I know 6G will qualify for all position. But I curious why ASME take 80 degree as a limit for a position of 3G, but also at 4G...is that mean if a weld bead position exactly 80,4G or 3G welder can also make a weld on that position without any additional qualification?
  5. kangomath

    Welder Qualification ASME with T Shape test coupon

    Dear Experts, This is my very first thread/question ever on this very useful website. I would like to ask something about how to qualify a welder. Is it possible to qualify a welder for all position if the welder is tested with a single V-groove test coupon which having Tee-shape like a T weld...

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