1. What is RHS Steel?

RHS (Rectangular Hollow Section) steel is a type of metal profile with a rectangular cross-section and hollow interior. It's widely used in construction and structural applications due to its high strength-to-weight ratio and aesthetic appeal.

2. How Does the Calculator Work?

The calculator uses the RHS weight formula:

Where:

• \( height \) — Outer height dimension in millimeters
• \( width \) — Outer width dimension in millimeters
• \( thickness \) — Wall thickness in millimeters
• 0.00785 — Density coefficient for steel (kg/mm³)

Explanation: The formula calculates the cross-sectional area of the steel and multiplies it by the density of steel to determine weight per meter.

3. Importance of Steel Weight Calculation

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

4. Using the Calculator

Tips: Enter all dimensions in millimeters. Ensure thickness is less than half of both height and width dimensions for valid calculations. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the density factor 0.00785?
A: This represents the density of steel (7850 kg/m³) converted to kg/mm³ for calculations with millimeter dimensions.

Q2: Can this calculator be used for square hollow sections?
A: Yes, simply enter the same value for both height and width dimensions to calculate weight for square sections.

Q3: How accurate is this calculation?
A: The calculation provides theoretical weight based on nominal dimensions. Actual weight may vary slightly due to manufacturing tolerances.

Q4: What are common RHS sizes?
A: Common RHS sizes range from 20×10mm to 400×200mm with various thickness options, depending on application requirements.

Q5: Does this account for different steel grades?
A: No, this calculation assumes standard carbon steel density. Different alloys may have slightly different densities.