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Weight per Meter of Square Pipe

Weight per Meter Formula:

\[ W = \rho \times (a^2 - b^2) \]

kg/m³
meters (m)
meters (m)
kg/m

1. What is Weight per Meter of Square Pipe?

Definition: This calculator determines the linear weight (mass per unit length) of a square pipe or tube based on its dimensions and material density.

Purpose: It helps engineers, architects, and construction professionals estimate the weight of square pipes for structural calculations and material planning.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ W = \rho \times (a^2 - b^2) \]

Where:

  • \( W \) — Weight per meter (kg/m)
  • \( \rho \) — Material density (kg/m³)
  • \( a \) — Outer side length (meters)
  • \( b \) — Inner side length (meters)

Explanation: The formula calculates the cross-sectional area (outer area minus inner area) and multiplies by material density to get weight per unit length.

3. Importance of Weight Calculation

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

4. Using the Calculator

Tips:

  • Enter material density (default 7850 kg/m³ for steel)
  • Provide outer and inner side lengths in meters
  • For solid square bars, set inner length to 0
  • All values must be positive, and outer length must be greater than inner length

5. Frequently Asked Questions (FAQ)

Q1: What's a typical density for steel pipes?
A: Most carbon steel pipes have a density of about 7850 kg/m³. Stainless steel is typically around 8000 kg/m³.

Q2: How do I measure the side lengths?
A: Measure outer dimensions with calipers. For inner dimensions, check specifications or measure wall thickness and subtract twice from outer dimension.

Q3: Can I use this for rectangular pipes?
A: No, this calculator is specifically for square pipes. For rectangular pipes, a different formula is needed.

Q4: Why is weight per meter important?
A: It helps determine total weight for a given length, which affects structural loads, shipping costs, and material requirements.

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

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