It depends on the nominal diameter of pipe, but in actual sch-40 thickness is lesser than sch-80.
The gauge of the pipe is the wall thickness. It is easier to say Schedule 40 pipe than .180 inch wall thickness. This is the SCH 40 wall thickness for a standard 12" pipe and the actual gauge thickness will vary based on pipe size and material. The larger the Schedule number, the thicker the pipe wall thickness. Pipe Schedule is also expressed in Std., X-Stg., and XX-Stg. since some thicknesses are more common than others.
wall thickness of the pipe
It is the wall thickness heavier then schedule 20 lighter then schedule 80
Schedule of pipe most commonly refers to the thickness of the wall of the pipe itself. ex...schedule 40 PVC pipe has a thinner wall than sch. 80 PVC
Schedule in pipe is relevant to NPS (National Pipe Sizes) and refers to the wall thickness of pipe. 20 is thin wall, 40 is strong and 80 is extra. (There are other sizes, these are just examples.)
The schedule value refers to the thickness of the wall of the pipe; the bigger the number (schedule) the bigger the wall thickness is of the pipe. The thickness is relative to the diameter of the tube/pipe an the application it is being used in.
The gauge of the pipe is the wall thickness. It is easier to say Schedule 40 pipe than .180 inch wall thickness. This is the SCH 40 wall thickness for a standard 12" pipe and the actual gauge thickness will vary based on pipe size and material. The larger the Schedule number, the thicker the pipe wall thickness. Pipe Schedule is also expressed in Std., X-Stg., and XX-Stg. since some thicknesses are more common than others.
wall thickness of the pipe
It is the wall thickness heavier then schedule 20 lighter then schedule 80
Schedule of pipe most commonly refers to the thickness of the wall of the pipe itself. ex...schedule 40 PVC pipe has a thinner wall than sch. 80 PVC
Pipe schedule tell you something about the wall thickness of a pipe. Higher schedule means thicker wall. The actual thickness must be read from a pipe specification sheet, as it differs from material to material. Typical pipe sch. are Sch 20, 40, 80, 160, XS, XXS.
Schedule in pipe is relevant to NPS (National Pipe Sizes) and refers to the wall thickness of pipe. 20 is thin wall, 40 is strong and 80 is extra. (There are other sizes, these are just examples.)
Pipe schedule tell you something about the wall thickness of a pipe. Higher schedule means thicker wall. The actual thickness must be read from a pipe specification sheet, as it differs from material to material. Typical pipe sch. are Sch 20, 40, 80, 160, XS, XXS.
Not plumbing pvc pipe, but pvc pipe made especially for wiring.
The difference between schedule 40 and 80 pvc is the wall thickness and schedule 80 is thicker then schedule 40 so the higher the schedule number the thicker the wall of the pipe thus can hold more pressure.
the wall thickness of sch 40 - 500mm dia pipe is 15mm or 16mm.
The difference in thickness is not by the ASTM grade, but rather by the term "Schedule" - as in Schedule's 10, 40, and 80 - with schedule 10 having the lighest wall thickness, and schedule 80 having the thickest.