Calculating the weight of a steel pipe is actually much easier than it seems — it’s based on a simple formula.
To theoretically calculate the weight of 1 meter of a steel pipe, all you need to know are the outer diameter and wall thickness, both in millimeters (mm).
The calculation is straightforward:
- Subtract the wall thickness from the outer diameter,
- Multiply the result by the wall thickness,
- Then divide that number by 40.55.
That’s it!
Formula:
Where:
- D = Outer diameter (mm)
- t = Wall thickness (mm)
Example Calculation
Let’s calculate the theoretical weight of 1 meter of a 1-inch black steel water pipe.
For a 1” (1 inch) black steel water pipe,
- Outer diameter (D): 33.7 mm
- Wall thickness (t): 3.2 mm
Substitute into the formula:
The value obtained represents the theoretical weight, meaning that in actual production, small variations may occur within the tolerances allowed by pipe manufacturing standards. Therefore, the actual weight may differ slightly from the theoretical value.
