Weight of ERW Pipes per Meter Calculator

ERW Pipe Weight Formula:

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

Weight per Meter:

kg/m

1. What is the Weight of ERW Pipes per Meter Calculator?

Definition: This calculator estimates the weight per meter of Electric Resistance Welded (ERW) pipes based on material density and pipe dimensions.

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

2. How Does the Calculator Work?

The calculator uses the formula:

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

Where:

\( W \) — Weight per meter (kg/m)
\( \rho \) — Material density (kg/m³)
\( OD \) — Outer diameter (meters)
\( ID \) — Inner diameter (meters)

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

3. Importance of Pipe Weight Calculation

Details: Accurate weight calculations are essential for structural integrity assessments, transportation planning, and cost estimation in piping projects.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What's the typical density for steel pipes?
A: Most carbon steel pipes have a density of about 7850 kg/m³. For other materials, adjust accordingly.

Q2: How do I measure pipe diameters?
A: Measure outer diameter directly. Inner diameter is OD minus twice the wall thickness. All measurements should be in meters.

Q3: Does this work for all pipe types?
A: This formula works for any circular pipe, but ERW pipes are specifically mentioned as they're commonly calculated this way.

Q4: How accurate is this calculation?
A: It's theoretically accurate for perfect cylinders. Real-world variations in wall thickness may cause slight differences.

Q5: Can I calculate total pipe weight with this?
A: Yes, multiply the result by the total length of pipe in meters to get the complete weight.