Design standard of typical detail tube hole rolling and welding tubes (without grooving). Use this standard for study purposes only.

General Notes:

  1. See exchanger drawing for material specification and any exception to this standard
  2. Length roller expanded to be the smalles of 90% of tube sheet thickness or 150 mm
  3. Before welding tube to be rolled lightly in tube sheet
  4. After weldling tube to be rolled finally in tube sheet


The next figure shows a typical design: