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  1. CGMI

    Difference between ASTM A 105 and Class 300# pipe fitting

    Thanks Unclesyd, specifically I was trying to assess whether an A 105 fitting was equivelent to a malleable cast fitting for a fixed CO2 gas fire extinguishing system. So bottom line is the A 105 fitting superior in strength for this pressure and temperature application (co2 basically freezes...
  2. CGMI

    Difference between ASTM A 105 and Class 300# pipe fitting

    Does a pipe fitting meeting ASTM A 105 meet or exceed a "Class 300 malleable or ductile iron" fitting? Or am I talking apples and oranges....

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