In order to Calculating the weight of a hollow steel pipe(Circular) you need to know the Standard sizes：
1）the outside diameter (OD) and inside diameter (ID) of the pipe. You can measure these dimensions using a caliper or ruler.
2）the thickness of the pipe（wt）, which is the difference between the OD and the ID. This can be calculated by subtracting the ID from the OD and dividing the result by two.
Once you have these three dimensions (OD, ID, and thickness), you can use a formula to calculate the weight of the pipe. The formula commonly used is:Weight = (OD^2 - ID^2) x Thickness x 0.0246615
The 0.0246615 factor is a constant, and the units of the weight will depend on the units used for the dimensions (e.g. pounds per foot, kilograms per meter, etc.). It is important to note that this formula assumes the steel used has a density of 7850 kg/m³.
In conclusion, calculating the weight of a hollow steel pipe is not a difficult task if you know the critical dimensions of the pipe. This information can be used in planning and designing construction projects, ensuring that the right materials are used for optimal results.
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