H Section

Wide flange H-beam:
Dimension range (mm):
Height (H): 100 - 400
Flange width (B): 100 - 400
Web thickness (t₁): 5.5 - 26
Flange thickness (t₂): 8 - 40

Medium flange H-beam:
Dimension range (mm):
Height (H): 148 - 594
Flange width (B): 100 - 302
Web thickness (t₁): 6 - 24
Flange thickness (t₂): 9 - 28

Narrow flange H-beam:
Dimension range (mm):
Height (H): 100 - 900
Flange width (B): 50 - 309
Web thickness (t₁): 5 - 26
Flange thickness (t₂): 7 - 39

GB/T 11263-2017
GB/T 33814-2017
EN 10034
EN 10025
ASTM A992
JIS G 3192
JIS G 3101/3106

H-beams are classified according to the ratio of flange width to web height and specific uses:
Wide flange H-beam HW (H-Wide Flange)
Middle flange H-beam HM (H-Middle Flange)
Narrow flange H-beam HN (H-Narrow Flange)

Other classifications:
By production method: hot-rolled H-beams, welded H-beams.
By dimensional accuracy: Class A (high accuracy), Class B (ordinary accuracy).
By flange thickness: thin wall, medium-thick wall, thick wall.

Industrial and civil construction
Bridge engineering
Equipment foundation and support
Marine engineering and ports
Underground engineering
Power transmission and communication towers
Vehicles and ships