1. What is Unit Weight of GI Pipe?

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

Purpose: It helps engineers, contractors, and fabricators estimate pipe weights for structural calculations, transportation, and installation planning.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( W \) — Weight per unit length (kg/m)
• \( \rho \) — Material density (kg/m³, default 7850 for steel)
• \( OD \) — Outer diameter of pipe (meters)
• \( ID \) — Inner diameter of pipe (meters)

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

3. Importance of Pipe Weight Calculation

Details: Accurate weight calculations are essential for structural integrity assessments, load-bearing capacity, transportation logistics, and cost estimation.

4. Using the Calculator

Tips: Enter the material density (default 7850 kg/m³ for steel), outer diameter, and inner diameter in meters. All values must be positive and OD must be greater than ID.

5. Frequently Asked Questions (FAQ)

Q1: What's the typical density for GI pipes?
A: Standard density is 7850 kg/m³ for steel. The galvanized coating adds minimal weight (typically 1-3%).

Q2: How do I measure pipe diameters accurately?
A: Use calipers for small pipes or circumference measurements divided by π for larger pipes. Subtract twice the wall thickness from OD to get ID.

Q3: Can I use this for other pipe materials?
A: Yes, just change the density value (e.g., 2700 kg/m³ for aluminum, 8940 kg/m³ for copper).

Q4: How do I calculate total pipe weight?
A: Multiply the result by the pipe length in meters.

Q5: What if I only know the wall thickness?
A: Inner Diameter = Outer Diameter - (2 × Wall Thickness). You can calculate ID first then use this calculator.

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