WEIGHT CONVERSION
SimpleWeight and Conversion Formulas
There are two methods for deriving weight of steel products. Nominal weights are based on the theoretical weight of steel taken as 40.80 pounds per square foot, one inch thick. Standard weights are based on experience, taking into consideration the various manufacturing practices. There may be some slight differences between the two weights and both can vary from the actual scaleweight. The following formulas are based upon Nominal weights and should be considered approximations rather than actual weights.
SimpleWeight Formulas for Steel Shapes
Rounds
Diameter squared X 2.67 = Weight per lineal foot Diameter squared X 3.4 = Weight per lineal foot Diameter squared X 2.945 = Weight per lineal foot Diameter squared X 2.817 = Weight per lineal foot Thickness (inches) Xwidth (inches) X 3.4 =Weight per lineal foot OR Thickness (inches) Xwidth (inches) X .2833 =Weight per lineal inch Thickness (inches) Xwidth (inches) X 3.485 = Weight per lineal foot OR Thickness (inches) Xwidth (inches) X .2904 = Weight per lineal inch Diameter squared X thickness (inches) X .2225 Diameter squared X thickness (inches) X .228 Outside diameter squared - inside diameter squared X .2223 = Weight per inch of width
Square
Hexagons*
Octagons*
Flats-Plate And Strip
Sheet
Plate-Circles
Sheet-Circles
Coils
Pipe & RoundTubing
O.D. -Wall thickness Xwall thickness X 10.68 = Weight Per Foot
*The diameter of hexagons and octagons ismeasured across the flats.
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