How it works
Calculate theoretical mass of circular hollow steel sections from outside diameter and wall thickness.
Core method:
Steel area = π/4 × (D² − d²), where d = D − 2t. Mass = area × length × density.
Steel area = π/4 × (D² − d²), where d = D − 2t. Mass = area × length × density.
Before you use the result: Check project drawings, supplier data and site conditions before ordering materials.