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Hollow Section Pipe Weight Calculator

Pipe Weight Formula:

\[ W = \frac{\rho \times \pi \times (OD^2 - ID^2) \times L}{4} \]

kg/m³
meters
meters
meters

1. What is a Hollow Section Pipe Weight Calculator?

Definition: This calculator estimates the weight of hollow pipes based on material density, outer and inner diameters, and length.

Purpose: It helps engineers, fabricators, and construction professionals determine pipe weights for design, transportation, and installation purposes.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ W = \frac{\rho \times \pi \times (OD^2 - ID^2) \times L}{4} \]

Where:

  • \( W \) — Pipe weight (kilograms)
  • \( \rho \) — Material density (kg/m³)
  • \( OD \) — Outer diameter (meters)
  • \( ID \) — Inner diameter (meters)
  • \( L \) — Pipe length (meters)

Explanation: The formula calculates the cross-sectional area of the pipe wall and multiplies by length and density to get total weight.

3. Importance of Pipe Weight Calculation

Details: Accurate weight calculations are essential for structural design, transportation planning, load capacity assessments, and cost estimation.

4. Using the Calculator

Tips: Enter material density (default 7850 kg/m³ for steel), outer diameter, inner diameter (0 for solid bar), and length. All values must be positive with OD > ID.

5. Frequently Asked Questions (FAQ)

Q1: What's the default density value based on?
A: The default 7850 kg/m³ is for carbon steel. Adjust for other materials (e.g., 2700 for aluminum, 8960 for copper).

Q2: How do I calculate for solid bars?
A: Set inner diameter to 0 to calculate solid bar weight.

Q3: Can I use different units?
A: The calculator uses meters for dimensions. Convert other units before input (1 inch = 0.0254 meters).

Q4: Why is the result in kilograms?
A: The formula uses metric units. To convert to pounds, multiply by 2.20462.

Q5: Does this account for pipe fittings?
A: No, this calculates straight pipe sections only. Add additional weight for fittings.

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