What is a Round Pipe?

A round pipe, also known as a cylindrical pipe, is a hollow, tubular structure with a circular cross-section. These pipes are commonly used in various industries for transporting fluids (liquids and gases), structural applications, and as conduits for electrical wiring.

Step-by-Step Calculation for Round Pipe Weight

Identify the Parameters:

• Outer Diameter (OD)
• Wall Thickness (WT)
• Length (L)
• Material Density (D)

Convert Units if Necessary: Ensure all measurements are in consistent units (e.g., meters for length, kilograms per cubic meter for density).

Calculate the Inner Diameter (ID):

Calculate the Cross-Sectional Area of the Pipe Wall: The cross-sectional area is the area of the outer circle minus the area of the inner circle.

Calculate the Volume of the Pipe Wall: The volume is the cross-sectional area times the length of the pipe.

Calculate the Weight of the Pipe: The weight is the volume times the material density.

Detailed Example Calculation

Given Data

• Outer Diameter (OD) = 100 mm = 0.1 m
• Wall Thickness (WT) = 5 mm = 0.005 m
• Length (L) = 6 meters
• Density of steel (D) = 7850 kg/m³

Step 1: Calculate the Inner Diameter (ID)

Step 2: Calculate the Cross-Sectional Area of the Pipe Wall

Step 3: Calculate the Volume of the Pipe Wall

Step 4: Calculate the Weight of the Pipe

So, the weight of the steel pipe is approximately 70.27 kg.

Alternate Formula

Another way to calculate the weight directly, considering the density and dimensions, is:

Given our example data:

Breaking it down:

Calculate step-by-step:

Thus, we get the same result: approximately 70.27 kg.

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