Iron Pipe Size

Written by Matt Milbury on . Posted in Pipe

Iron pipe size (IPS) were originally established for wrought iron pipe. ASME B36.10M - Welded and Seamless Wrought Steel Pipe lists these dimensions. Before the schedule numbers for steel pipe was published by American Standards Association in 1935, the iron pipe size was modified slightly decreasing the wall thickness so the weight per foot (lb/ft) equaled the iron pipe weights.