HEM300 EN 340*310*21*39 H-shaped steel size standard
Cross-sectional dimensions of HEM300 h profile steel
Height × width: 340 × 310 mm
Web thickness: 21 mm
Flange thickness: 39 mm
Weight per meter: 238 kg/m (theoretical value)
Tolerance standard: in accordance with EN10034-1993/2004 standard to ensure dimensional accuracy and consistency.
Common materials for HEM300 h beam profile
S355J0/J2 h steel profile material: mainstream material, yield strength ≥355 MPa, tensile strength ≥470-630 MPa, with both high strength and toughness.
S355JR/S355J2: low temperature resistant type, suitable for -20℃ environment, excellent impact resistance, suitable for bridges and chemical equipment.
Mechanical properties of HEM300 steel h profile material
Yield strength ≥300-355 MPa (depending on the material).
Tensile strength ≥450-630 MPa.
Modulus of elasticity: 200000-210000 N/mm², providing high stiffness and resistance to deformation.
Application fields of HEM300 H-section steel beam
Building structure: used for high-rise building load-bearing beams/columns, industrial plant frames, and scenes with large support spans and high stability requirements.
Bridge engineering: suitable for the main beams and supporting structures of highway bridges and railway bridges, with excellent fatigue resistance.
Heavy machinery and infrastructure: petrochemical equipment, mining machinery, port conveyor belt brackets, etc., corrosion-resistant and with outstanding load-bearing capacity.
Comparison and advantages of HEM300 h beam section
Compared with traditional I-beams: larger section modulus, saving 10-15% of steel; straight flanges, easy to weld and combine, and construction efficiency increased by 25%.
Comparison of similar H-beams: Compared with HEB300 (300×300×11×19 mm), HEM300 has thicker webs and flanges and stronger bending bearing capacity.
