The formula for calculating pipe weight is m=10.68 (d_{o} – t_{w}) t_{w} , where m is weight per foot (lbs/ft), d_{o} is outside diameter in inches, and t_{w} is wall thickness in inches. The outside diameter and wall thickness of the pipe are required to calculate the weight per foot. The formula doesn’t take into account weight alterations after end finishing, e.g., upsetting or threading.
Continue ReadingThe weight-per-foot of a 4-inch steel pipe with an outside diameter of 4.5 inches and wall thickness of 0.237 is calculated as follows: m = 10.68 ((4.500 in) - (0.237 in)) (0.237 in), m=10.79 lbs/ft. The weight, wp, of an empty pipe per unit length (kg, lb) is given by w_{p} = ρ_{m} _{A}m
= ρ_{m} (π (d_{o} / 2)_{2} - π (d_{i} / 2)^{2})
= ρ_{m} π (d_{o}^{2} - d_{i}^{2}) / 4
The weight of liquid in a pipe per unit length is given by:
w_{l} = ρ_{l} A
= ρ_{l} π (d_{i} / 2)^{2}
= ρ_{l} π d_{i}^{2} / 4.
The weight of a pipe and the liquid in it per unit length is given by w_{p} + w_{l}.
Learn more about AlgebraTo read a PVC pipe dimension chart, first identify the pipe schedule, which refers to the thickness of the pipe wall. Choose a nominal pipe thickness, or general size classification, from the far left column. Read to the right to find the pipe specs. The specs appear at the top of each column. PVC pipe dimension carts usually specify the outside diameter, the average inside diameter and the minimum wall thickness.
Full Answer >Schedule 80 pipe ranges in nominal thickness from 0.10 inches for 1/8-inch pipe size to 1.22 inches for 24-inch pipe size according to Engineering Toolbox. The 1/8-inch schedule 80 pipe has an external diameter of 0.41 inches and an internal diameter of 0.22 inches.
Full Answer >The formula for hoop stress is the internal pressure times the internal diameter of the cylinder, divided by twice the wall thickness of the cylinder. The formula is expressed as ?h = (pd)/(2t), where ?h is the hoop stress, p is pressure, d is diameter and t is thickness.
Full Answer >Read weight charts for structural steel by finding the correct nominal size and wall thickness for your steel stock, and then finding the corresponding weight measurement. Most structural steel weight charts list stock weight in units of weight per unit length of stock. In the United States, weights are usually given in pounds per foot of stock, while kilograms per meter is more common in countries that use the metric system.
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