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  1. #1
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    Exclamation grade A astm pipes



    why Grade A ASTM standard A53 to A106 are generally not using in HVAC applications?
    Please answer



  2. #2
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    Re: grade A astm pipes

    Please bring some links to show what pipes are you talking about.

  3. #3
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    Re: grade A astm pipes

    I disagree my friend. In ammonia piping standard we shoud use Carbon steel pipe and shall be ASTM Standard A 53 Grade A or B, Type S (seamless) or ASTM Standard A 106 (also seamless), except where temperature-pressure criteria mandate a higher specification material. In medium pressure steam applications as well we use this same type of pipe material.

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