Angle steel = side length * side thickness * 0.015
Welded pipe/seamless steel pipe = (outer diameter - wall thickness) × wall thickness × 0.02466
Square tube = side length × 4 × 0.00785 = perimeter/3.14
Rectangular tube = (length + width) × 2 × wall thickness × 0.00785
Flat steel = width * wall thickness * 0.00785
Galvanized flat steel = width × wall thickness × 0.00785 × 1.06
Plate = length × width × thickness × 0.00785
Pattern plate=[thickness×0.0785+0.3]×length*width
Hexagonal steel = opposite sides × distance between opposite sides × 0.0065
Octagonal steel = opposite sides × distance between opposite sides × 0.0065
Stainless steel plate = length × width × thickness × 7.93
Round steel weight (kg) = 0.00617×diameter×diameter×length
Square steel weight (kg) = 0.00785 × side width × side width × length
Hexagonal steel weight (kg) = 0.0068 × width across sides × width across sides × length
Weight of octagonal steel (kg) = 0.0065×width across opposite sides×width across opposite sides×length
Rebar weight (kg) = 0.00617 × calculated diameter × calculated diameter × length
Angle steel weight (kg) = 0.00785 × (side width + side width - side thickness) × side thickness × length
Flat steel weight (kg) = 0.00785 × thickness × side width × length
Steel pipe weight (kg) = 0.02466 × wall thickness × (outer diameter - wall thickness) × length
