Copper pipe standards

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    • #274844
      Avatar photoMasterPlumbers

        Does anyone have information on the specifications of type M 3/4 inch residential copper water pipe(red label). After buying them at two different places I have found out they have different thickness and different weights. It seems to me the pipe should have the same specs regardless where made.

      • #290596
        Avatar photoPhil_H

          3/4″ hard drawn copper tube:
          Nominal OD 0.8750″
          Maximum OD 0.876″
          Minimum OD 0.874″
          Nominal Wall Thickness 0.032″
          Weight per foot 0.328lb
          Reference: Nibco fitting catalog

          Research ASTM B-88 for actual standards
          Online reference for copper tube:

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