NB = inside diameter of the tube.
OD = outside diameter of the tube.
42.16mm
27.2 kg/meter for 100 NB Simless pipe
A 250 NP pipe is a pipe that is 250 millimeters in diameter and is 10 inches long. It comes in a variety of thicknesses. NB stands for nominal bore. Sometimes this is referred to as NPS which stands for nominal pipe size. NB is a standard for pipe sizes in North America.
Nominal bore which is designation for pipe size.
150nb
id means inside diameter, od means outside diameter, copper pipe and tubing is measured by the od, therefore the od the pipe or tubing will be the same as the id of the fitting
what is difference between NB & OD in pipe size
14" and above
Pipe is identified by NB and thickness is defined by Schedule whereas Tube is identified by OD. For more detail about piping click here : http://pipingguide.blogspot.com/
Use this formula for weight calculation weight = (OD-Thk)*Thk*.02466 Kg/Mtr Where OD & Thk are in mm
27.2 kg/meter for 100 NB Simless pipe
the inner diameter of the pipe Nominal bore (NB) is 40 mm
A 250 NP pipe is a pipe that is 250 millimeters in diameter and is 10 inches long. It comes in a variety of thicknesses. NB stands for nominal bore. Sometimes this is referred to as NPS which stands for nominal pipe size. NB is a standard for pipe sizes in North America.
NB is nominal bore of that pipe, that doesn't mean that the pipe diameter (Inner or Outer)will be equal to the NB, but it is an digit nearest to the out side diameter of the pipe. That digit will be an easily memorable one like 25, 20, 32, 40 etc (Not like 23.25, 27.5, 41.8 etc). In standard pipes, the NB and the outside diameter will be same from 14 inches and above...
Nominal bore which is designation for pipe size.
YES
1/8 pipe schedule
OD is Outside Diameter - at least when you are talking about pipe...