How Do You Measure A Gauge Of Metal Tubing?
While the words “pipe” and “tube” can be used interchangeably in conversation and literature, each term has a specific meaning and terminology in engineering. Whereas the measurement of a pipe’s wall thickness is called its “schedule,” the wall thickness of a tube is known as its “gauge.” Because tubes with identical outside diameters can have up to five different wall thicknesses, the best way to measure gauge is to measure the tubes outside and inside diameters and calculate the difference. Bring the “inside jaws” of the vernier caliper together until their distance is about 0.25 inches less than the internal diameter of the tube. Note: for a diagram of the various parts of this instrument, visit “http://www.rit.edu/cos/uphysics/VernierCaliper/caliper.html”. Slide the jaws inside the opening of the tube. Rest the bottom jaw on the internal surface of the tube. Open the caliper until the top inside jaw touches the roof of the tube. Tighten the caliper into place with the coarse lockin
