Standard Pipe Schedules and Sizes Chart Table Data The following chart gives standard pipe schedule or pipes sizes as given by ANSI ASME B36 10M and API 5L Data given in based on the NPS Tables given by ANSI B36 10M and includes Pipe wall thickness, outside diameter, nominal diameter
ASME ANSI B36. 10 19 - Carbon, Alloy and Stainless Steel Pipe - Dimensions Regardless of schedule number, pipes of a particular size all have the same outside diameter (not withstanding manufacturing tolerances) As the schedule number increases, the wall thickness increases, and the actual bore is reduced