Popular Metals' Weight Formulas - China Precision Casting Foundry

Listing of Weight Formulas

ROUND ROD

Square of diameter X 9.42 X density of alloy = weight per lineal foot in pounds.
SQUARE BAR

Square of one side X 12 X density of alloy = weight per lineal foot in pounds.
HEXAGON ROD

Square of distance across flats X 10.4 X density of alloy = weight per lineal foot.
RECTANGULAR BAR

Thickness X width X 12 X density of alloy = weight per lineal foot in pounds.
ROUND TUBE

37.7 X density of alloy X wall thickness X outside diameter minus wall thickness = weight per lineal foot in pounds.

SQUARE TUBE

1.27 X the weight of a round tube of the same wall thickness, and of diameter equal to the distance across the flats of the square tube = weight per lineal foot.
SHEET

Thickness X 144 X density of alloy = weight per square foot in pounds.
STRIPS AND ROLLS

Thickness X width X 12 X density of alloy = weight per lineal foot in pounds.
CIRCLES

Square of diameter X thickness X 0.785 X density of alloy = weight of a circle.
RINGS

Outside diameter plus inside diameter X outside diameter minus inside diameter X thickness X 0.785 X density of alloy = weight of ring in pounds.