TECHNICAL TOOLS
Weight Per Foot
In determining the Average Wall Weight of a tube, the following formula was used:
W = 10.69 (D - t)t
In determining the Minimum Wall Weight of a tube, the following formula was used:
| W= |
10.69 |
( |
D- |
t |
) |
t |
| 0.875 |
0.875 |
Where W = Weight in pounds per foot (carried to four digits)
D = Outside diameter in inches (to three decimal places)
t = Wall thickness in decimals (to three decimal places)
The computed weight is for either Hot Finished or Cold Drawn round tubes.**
All weights are carried to four digits only, the fifth digit being carried forward if five or over, or dropped if under five.
Outside diameters and wall thickness are carried to three decimal places, the fourth decimal being carried forward if five or over, or dropped if under five.
** To determine Average or Minimum Wall Weight of square or rectangular tubing, substitute 13.60 for 10.69 in the above formula.
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