1. What is the Hollow Section Weight Formula?

The hollow section weight formula calculates the weight of hollow structural sections (HSS) such as square, rectangular, or circular hollow sections. It accounts for the perimeter, wall thickness, length, and material density.

2. How Does the Calculator Work?

The calculator uses the hollow section weight formula:

Where:

• \( Perimeter \) — Outer perimeter of the hollow section (m)
• \( T \) — Wall thickness (m)
• \( Length \) — Length of the section (m)
• \( Density \) — Material density (kg/m³)
• \( Adjustment \) — Any weight adjustment (kg)

Explanation: The formula calculates the volume of material and multiplies by density to get weight, with optional adjustment for special cases.

3. Importance of Weight Calculation

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

4. Using the Calculator

Tips: Enter all dimensions in meters. Default density is set for steel (7850 kg/m³). Adjustment can be used for special cases like corrosion allowance.

5. Frequently Asked Questions (FAQ)

Q1: How do I calculate perimeter for different shapes?
A: For square: 4×side length. For rectangle: 2×(width+height). For circle: π×diameter.

Q2: What's the typical density for steel?
A: Carbon steel is typically 7850 kg/m³. Stainless steel is about 8000 kg/m³.

Q3: When would I need an adjustment value?
A: For weight reductions (holes, notches) or additions (coatings, liners).

Q4: How accurate is this calculation?
A: Very accurate for uniform sections. Less accurate for tapered or irregular sections.

Q5: Can this be used for non-steel materials?
A: Yes, just input the appropriate density for your material (aluminum, plastic, etc.).