Calculate steel hollow section weight for square (SHS), rectangular (RHS), and circular (CHS) tubes. Used for structural steel framing, railings, and fabrication work in India.
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Hollow Section Weight Formulas
SHS: Area = Side² − (Side−2t)² RHS: Area = A×B − (A−2t)(B−2t) CHS: Area = π/4 × [OD² − (OD−2t)²] Weight (kg/m) = Area (mm²) × 7850 / 1,000,000
SHS (Square Hollow Section) has equal sides. RHS (Rectangular Hollow Section) has unequal sides. CHS (Circular Hollow Section) is round. All are hollow steel tubes used for structural and architectural applications.