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ASTM A53

Conduction tubes on steel grades A or B with chemical composition and defined mechanical properties. The ones of grade A can be bent, flanged and coiled. The ones of grade B can suffer limited bend and flange.

  • Generally supplied in Schedule.
  • Made by process with or without sewing.
  • Supplied in smooth or beveled ends also with and without emeding and corckscrew.
  • The brazilian NBR5590 is similar to this one.

ASTM A106

Conduction tubes on steel grades A or B with chemical composition and defined mechanical properties. The ones of grade A can be bent, flanged and coiled. The ones of grade B can suffer limited bend and flange.

  • Generally supplied in Schedule.
  • Made by process with or without sewing.
  • Supplied in smooth or beveled ends also with and without emeding and corckscrew.
  • For high-temperatures appliance.

ASTM A178

Tubes for boilers, superheaters, steam generators, heating coils, evaporators, condensers and pressure boilers, in several grades of raw material.

  • They can be submitted to cold work, such as flanging, conification and bend.
  • The requirements and mechanical properties are not applied to tubes of internal diameter less than 3.20mm and wall thickness less than 0.4mm.

ASTM A179

Seamless cold drawn low-carbon steel tubes for heat exchanges or condensers.

  • They can be replaced by cold work as folds, flanging and conification and it ir not necessary the heating of the ends.
  • The tubes from these specifications attend to the requirements of mechanical properties of ASTM A450 rules.

SCH - 40

SCH - 80

SCH - 160


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