2 sch 40 pipe dimensions is the pipe wall thickness standard defined by ASTM, and 2 inch is one of the sizes.
2 SCH 40 Pipe Dimensions
2-inch Sch40 pipe has a nominal outside diameter of 60.3 mm (2.375 inches), a wall thickness of approximately 3.91 mm (0.154 inches), a weight of 5.44 kg/m (3.65 lb/ft), and a maximum allowable pressure of 3177 psi (21,905 kPa).
References
ASME B36.10M: Welded and Seamless Wrought Steel Pipe
Engineering ToolBox – Pipe Schedules:
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