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Recent content by asfarali

  1. asfarali

    Valve Stem Material

    Thank you guys for your post Revermann - yes they are supplying with dual certification. so I am going ahead with that.
  2. asfarali

    Valve Stem Material

    Thanks for your post guys. Gerhardl - The issue is that client is asking us to decide which material to accept and the justification for its acceptance. So i request you to help me in this regard. Kindly let me know what details you need in this regard. Or if any one can suggest me a good link...
  3. asfarali

    Valve Stem Material

    Hi in one of the projects, the required material for Valve stem is A182 F316L, but the supplier has provided 2 options 1. AISI 4140 2. A182 F316, Considering following design criteria, which one can be accepted. 1. Design Pressure - 63.5 Barg 2. Design temperature - 5 to 85 Deg Celcius
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