Rectangular Hollow Tube Weight Calculator

Rectangular Hollow Tube Weight Formula:

\[ Weight = 2 \times (L + W) \times T \times Length \times Density - 4 \times T^2 \times Length \times Density \]

Length (L):

Width (W):

Thickness (T):

Tube Length:

Density:

kg/m³

Calculated Weight:

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1. What is Rectangular Hollow Tube Weight Calculation?

The rectangular hollow tube weight calculation determines the mass of a rectangular tube based on its dimensions and material density. This is essential for engineering, construction, and manufacturing applications where precise weight estimation is needed.

2. How Does the Calculator Work?

The calculator uses the rectangular hollow tube weight formula:

\[ Weight = 2 \times (L + W) \times T \times Length \times Density - 4 \times T^2 \times Length \times Density \]

Where:

\( L \) — Length of the tube side (m)
\( W \) — Width of the tube side (m)
\( T \) — Wall thickness (m)
\( Length \) — Total length of the tube (m)
\( Density \) — Material density (kg/m³)

Explanation: The formula calculates the total volume of material by considering the perimeter and thickness, then subtracts the hollow interior volume.

3. Importance of Weight Calculation

Details: Accurate weight calculation is crucial for structural design, transportation planning, cost estimation, and load-bearing capacity analysis in construction and engineering projects.

4. Using the Calculator

Tips: Enter all dimensions in meters. The default density is set to 7850 kg/m³ (steel), but you can change it for other materials (e.g., aluminum = 2700 kg/m³).

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between this and solid rectangular bar weight?
A: This formula accounts for the hollow interior, resulting in significantly less weight than a solid bar of the same external dimensions.

Q2: How accurate is this calculation?
A: It provides theoretical weight based on perfect geometry. Actual weight may vary slightly due to manufacturing tolerances.

Q3: Can I use this for square tubes?
A: Yes, simply enter the same value for length and width to calculate square hollow tube weight.

Q4: What if my tube has rounded corners?
A: This formula assumes sharp corners. For rounded corners, the actual weight will be slightly less.

Q5: How do I find my material's density?
A: Common densities: Steel=7850 kg/m³, Aluminum=2700 kg/m³, Copper=8960 kg/m³, Brass=8470 kg/m³.