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GI Pipe Size and Weight Chart

Pipe Weight Formula:

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

kg/m³
meters
meters
meters

1. What is a GI Pipe Weight Calculator?

Definition: This calculator estimates the weight of galvanized iron (GI) pipes based on their dimensions and material density.

Purpose: It helps engineers, contractors, and fabricators determine pipe weights for transportation, structural calculations, and material estimation.

2. How Does the Calculator Work?

The calculator uses the formula:

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

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 volume of the pipe wall (cross-sectional area × length) and multiplies by material density.

3. Importance of Pipe Weight Calculation

Details: Accurate weight calculations are essential for structural support design, transportation planning, and cost estimation in construction projects.

4. Using the Calculator

Tips:

  • Default density is 7850 kg/m³ for steel (GI pipes)
  • For solid rods, set ID = 0
  • All dimensions should be in meters

5. Frequently Asked Questions (FAQ)

Q1: What's the typical density for GI pipes?
A: Standard GI pipes have a density of about 7850 kg/m³ (same as steel).

Q2: How do I measure pipe diameters?
A: Measure OD directly with calipers. For ID, either measure directly or calculate from OD minus twice the wall thickness.

Q3: What if my pipe is in inches?
A: Convert inches to meters by multiplying by 0.0254 before entering values.

Q4: Does this account for the zinc coating?
A: The zinc coating adds minimal weight (typically 1-3%) which isn't included in this calculation.

Q5: How accurate is this calculation?
A: It provides theoretical weight. Actual weights may vary slightly due to manufacturing tolerances.

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