A wall thickness designator used in certain pipe specification systems, such as IPS or EMT, in which a schedule number for a given nominal pipe diameter designates a wall thickness in decimal inches. Typically the same schedule number will designate different wall thicknesses for different nominal pipe diameters. For example, Schedule 40 for 1.5″ IPS pipe is a wall thickness of .145 inches, while Schedule 40 for 2.5″ IPS pipe is a wall thickness of .203 inches. Note that in the IPS system, Schedule 40 is sometimes referred to as “standard” and Schedule 80 as “XS” or “extra-strong”. Schedule is commonly abbreviated “sch.” or “sched.”
FREE Tube-Bending Guide Download:
A complete guide to the principles of the 4-Step set-up for tube-bending tools
This is a printable handbook showing how to implement in four standardized steps the “forward mandrel” set-up for rotary-draw tube-bending machines and establish process control over the so-called black art. The procedure is based upon the guiding principle that the tools make the bend and takes advantage of the inserted design of modern mandrel tooling.