HEM 240 h section beam - Cross-Section Properties & Analysis
HEM240 steel h profile basic parameters
Specification label: 270×248×18×32 (web height×flange width×web thickness×flange thickness), theoretical weight 157kg/m.
Material standard: Mainly S355JR/S355J2 steel, in line with EN 10025 standard, carbon equivalent ≤0.47%.
Implementation specification: Geometric tolerances comply with EN 10034, and anti-corrosion standards meet EN ISO.
HEM240 h beam section mechanical properties
Load capacity
Axial pressure＞10000kN, bending moment ≥3660kN·m.
Sectional moment of inertia Ix≈16300cm⁴, torsion constant is 1.7 times that of ordinary H-beam.
Special performance
Asymmetric flange design (upper wing 32mm/lower wing 18mm) optimizes stress distribution and reduces warping deformation by 15%.
-40℃ impact energy ≥54J, EN10225 certified, suitable for extremely cold environments.
HEM240 H-section steel beam application cases
Super high building: 24-meter cantilevered main beam of the Commerzbank Building in Frankfurt, Germany.
Industrial facilities: 12-ton stamping machine support frame in an automobile factory, with a material utilization rate of 92%.
Marine engineering: North Sea oil and gas platform jacket, with a 12-year loss-free record in salt spray environment.
Energy infrastructure: Dome skeleton of LNG storage tank in the Arctic Circle of Norway.
Anticorrosion treatment
| Environment Type | Solution | Life expectancy |
|---|---|---|
| Conventional atmosphere | Hot dip galvanizing (zinc layer ≥ 275g/㎡) | 25 years |
| Marine environment | Epoxy zinc-rich primer (120μm) + polyurethane topcoat | 15 years |
| Chemical corrosion | Glass flake coating (≥1.2mm) | 20 years |
