Weight for Steel Bars, Pipe, and Tubing (lb)

Written by Jerry Ratzlaff on . Posted in Pipe

These formulas calculate the weight per foot for various pipe and structural shapes.

Weight for Steel Bars, Pipe, and Tubing (lb) formula

(Eq. 1)  $$\large{ W = 10.68 \; (OD - t) \; t }$$     (pipe and round tubing)

(Eq. 2)  $$\large{ W = 13.60 \; [ (l + w) - t ] \; t }$$     (rectangular tube)

(Eq. 3)  $$\large{ W = 13.60 \; (OD - t) \; t }$$     (square tube)

(Eq. 4)  $$\large{ W = 0.2836 \; t \; 144 }$$     (plate)

(Eq. 5)  $$\large{ W = 0.2225 \; d^2 \; t }$$     (plate circle)

(Eq. 6)  $$\large{ W = 0.2904 \; t \; 144 }$$     (sheet)

(Eq. 7)  $$\large{ W = 3.403 \; t \; w }$$     (flat bar)

(Eq. 8)  $$\large{ W = 2.945 \; d^2 }$$     (hexagon bar)

(Eq. 9)  $$\large{ W = 2.817 \; d^2 }$$     (octagon bar)

(Eq. 10)  $$\large{ W = 2.673 \; d^2 }$$     (round bar)

(Eq. 11)  $$\large{ W = 3.403 \; d^2 }$$     (square bar)

Where:

$$\large{ W }$$ = pipe weight per foot (approximate)

$$\large{ d }$$ = diameter

$$\large{ l }$$ = length (long side)

$$\large{ OD }$$ = pipe outside diameter

$$\large{ t }$$ = pipe thickness

$$\large{ w }$$ = width (short side)