Pipe Weight Standards ANSI/ASME B36.10

Pipe is defined by the Outside diameter (O.D.). The inside diameter
(I.D.) is effected by the wall thickness

Welded and Seamless Wrought Steel
  • Light Wall
  • Schedule 10 (Sch/10, S/10)
  • Schedule 20 (Sch/20, S/20)
  • Schedule 30 (Sch/30, S/30)
  • Schedule 40 (Sch/40, S/40)
  • Standard Weight (ST, Std)
  • Schedule 60 (Sch/60, S/60)
  • Extra Strong (Extra Heavy, EH, XH, XS)
  • Schedule 80 (Sch/80, S/80)
  • Schedule 100 (Sch/100, S/100)
  • Schedule 120 (Sch/120, S/120)
  • Schedule 140 (Sch/140, S/140)
  • Schedule 160 (Sch/160, S/160)
  • Double Extra Strong (Double extra heavy, XXH, XXS)
For stainless steel pipes thru 12-inch, schedule numbers from Schedule 5S
to schedule 80S are used as published in ANSI/ASME 36.19M Stainless Steel Pipe.
  • Schedule 5S (Sch/5S, S/5S)
  • Schedule 10S (Sch/10S, S/10S)
  • Schedule 40S (Sch/40S, S/40S)
  • Schedule 80S (Sch/80S, S/80S)