Line Pipe Schedule 140 Dimension, Weight and Thickness Chart

Oilfield Chart - Line Pipe Schedule 140 Dimension, Weight and Thickness ChartPiping schedule refers to the pipe’s thickness. Schedule 140 is a pipe’s thickness designator. The American Society of Mechanical Engineers assigned the schedule number to combine the pipe’s diameter and wall thickness. It replaces and simplifies the old system where line pipe is available in only three sizes such as double extra-strong (XXS), standard weight (STD), and extra-strong (XS) – all based on the iron pipe size or IPS system.

The schedule number (140) is equivalent to the pressure and stress that are both measured in pounds per square inch (psi).

Schedule number = p/s

P – the service pressure
S – the allowable stress

Line Pipe Schedule 140 Dimension, Weight, and Thickness Chart

The Line Pipe Schedule 140 Dimension, Weight, and Thickness Chart shows the exact numerical values for each nominal size and corresponding dimensions (diameter, thickness) and weight. The chart or table is useful for specifying the best pipe for drilling completion. It allows one to determine  the pipe that is compatible with other drill pipe components, as well as the pipe that is best for certain underground conditions.
 

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Line Pipe Schedule 140 Dimension, Weight and Thickness Chart

Nom. Size (in) OD (in) OD (mm) Wall Thkns (in) Wall Thkns (mm) Wgt (lb/ft) Wgt (kg/m)
wdt_ID Nom. Size (in) OD (in) OD (mm) Wall Thkns (in) Wall Thkns (mm) Wgt (lb/ft) Wgt (kg/m)
1 8 8.625 219.1 0.812 20.62 67.76 100.92
2 10 10.75 273 1 25.4 104.13 155.15
3 12 12.75 323.8 1.125 28.58 139.67 208.14
4 14 14 355.6 1.25 31.75 170.21 253.56
5 16 16 406.4 1.438 36.53 223.64 333.19
6 18 18 457 1.562 39.67 274.22 408.26
7 20 20 508 1.75 44.45 341.09 508.11
8 22 22 559 1.875 47.63 403 600.63
9 24 24 610 2.062 52.37 483.12 720.15

Line Pipe SCH 140: Definition of Dimensional Values

The Table for Line Pipe Schedule 140 Dimension, Weight, and Thickness constitutes rows for nominal sizes and columns for dimensional values.

Nominal size is the non-specific term used for non-approximate values. It refers to the outside diameter. A 2 nominal pipe size means a pipe with 2.375 inches on its outside diameter regardless of wall thickness. An increase in the schedule (SCH) increments the mechanical pipe strength and allows it to withstand higher pressures.

Outside diameter is the measurement from the outer wall to the other side – top to bottom and left to right. To calculate the outside diameter, use this formula:

Outside diameter = ID + Wall thickness (2x)

Wall thickness is expressed in pipe schedule.  The wall thickness measures the pipe’s wall in inches or millimeters. To calculate the wall thickness based on ID and OD, here is the formula:

Wall thickness = ID – OD / 2

Weight defines the pipe’s weight per foot or pound.

Line Pipe Schedule 140 Dimensions

The Line Pipe Schedule 140 Dimension, Thickness, and Weight Table shows that an increase in nominal size also increments the outside diameter (millimeters), wall thickness (inches and millimeter), and weight (kg/m) except for the outside diameter.

For example, in stainless steel pipes and tubes, the formula for Outer Diameter would be the following:

OD (mm) – W.T (mm) X W.T (mm) x 0.02466 = kilogram per meter.

Line Pipe Schedule 140 Dimensions Chart Abbreviations:

  • OD – Outside Diameter
  • in – inches
  • mm – millimeter
  • lb/ft – pounds per feet
  • kg/m – kilogram per meter
  • Wgt – Weight
  • Nom. Size – Nominal Size
  • Wall Thkns – Wall Thickness

Go here if you are looking for the Line Pipe Schedule 160 Dimension, Weight and Thickness Chart