Structures
115
Structural steel hollow sections External sizes in mm Hot formed circular
square
21.3 26.9 33.7 42.4 48.3 60.3 76.1 88.9 114.3 139.7 168.3 193.7 219.1 244.5 273.0 323.9 355.6 406.4 457.0 508.0
40 40 50 50 60 60 70 70 80 80 90 90 100 100 120 120 140 140 150 150 160 160 180 180 200 200 250 250 260 260 300 300 350 350 400 400
Seamless
Jumbo
hot formed
hot formed
hollow
square hollow
sections
sections also
also
available with
available
thicker walls
with thicker
350 to 600 mm
walls
square
Cold formed rectangular circular
50 30 60 40 80 40 90 50 100 50 100 60 120 60 120 80 150 100 160 80 200 100 200 120 200 150 250 100 250 150 260 140 300 100 300 200 300 250 350 150 350 250 400 120 400 150 400 200 400 300 450 250 500 200 500 300
193 to 660 mm ø
Source: Corus: tubes and pipes
26.9 33.7 42.4 48.3 60.3 76.1 88.9 114.3 139.7 168.3
square
rectangular
20 20 25 25 30 30 40 40 50 50 60 60 70 70 80 80 90 90 100 100 120 120 150 150
50 25 50 30 60 40 80 40 80 60 90 50 100 40 100 50 100 60 100 80 120 40 120 60 120 80 150 100 160 80 200 100