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Unit Weight of MS Pipe Calculator

Unit Weight Formula:

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

kg/m³
meters (m)
meters (m)
kg/m

1. What is Unit Weight of MS Pipe?

Definition: This calculator estimates the weight per meter of mild steel pipes based on their dimensions and material density.

Purpose: It helps engineers, construction professionals, and fabricators determine pipe weight for structural calculations and material estimation.

2. How Does the Calculator Work?

The calculator uses the formula:

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

Where:

  • \( W \) — Unit weight (kg/m)
  • \( \rho \) — Steel density (kg/m³, typically 7850 for mild steel)
  • \( OD \) — Outer diameter (meters)
  • \( ID \) — Inner diameter (meters)

Explanation: The formula calculates the cross-sectional area of the pipe wall and multiplies it by the material density.

3. Importance of Pipe Weight Calculation

Details: Accurate weight estimation is crucial for structural design, transportation planning, and cost estimation in construction projects.

4. Using the Calculator

Tips: Enter the steel density (default 7850 kg/m³ for mild steel), outer diameter, and inner diameter in meters. All values must be > 0 and OD must be greater than ID.

5. Frequently Asked Questions (FAQ)

Q1: What's the typical density for mild steel?
A: Mild steel typically has a density of 7850 kg/m³ (7.85 g/cm³).

Q2: How do I measure pipe diameters?
A: Measure the outer diameter directly with calipers. For inner diameter, subtract twice the wall thickness from the outer diameter.

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

Q4: What if my pipe is in inches?
A: Convert inches to meters by multiplying by 0.0254 before entering values.

Q5: Does this account for pipe fittings?
A: No, this calculates only straight pipe sections. Fittings require separate calculations.

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