Hot Dipped HEM180 S355J2 structural steel h beam

H-beam model HE180M adopts the European standard naming system, and the typical parameters are:
Web height ≈ 180mm | Flange width ≈ 92mm (refer to the HEM series naming rules).
Web thickness ≈ 8.5mm | Flange thickness ≈ 14mm (estimated value, subject to manufacturer's data).
Theoretical weight ≈ 42kg/m (the weight of the same series HEM200 is 26.7-157kg/m).

S355J2 is a low-alloy high-strength structural steel that complies with EN 10025 standard:
Yield strength ≥ 355MPa (thickness ≤ 16mm), which decreases step by step with increasing thickness.
Chemical composition: C ≤ 0.22%, Mn ≤ 1.60%, S/P ≤ 0.025% (optimize welding and brittle crack resistance).
Impact toughness: -20℃ impact energy ≥ 27J (meet the needs of cold environment).

‌Carrying capacity‌
Section bending modulus is estimated to be ≥400cm³ (reference HEM200's 589cm³).
Applicable axial pressure is about 3500-6000kN (calculated based on the cross section).

‌Process adaptability‌
Carbon equivalent ≤0.47%, suitable for CO₂ gas shielded welding, submerged arc welding and other processes.
Supports cold bending forming, no crack risk when the bending radius is ≥4 times the wall thickness.

‌Building structure‌: light factory frame, multi-story building seismic support system.
‌Machinery manufacturing‌: medium-sized conveying equipment skeleton, hydraulic press support frame.
‌Transportation facilities‌: urban viaduct maintenance platform, rail contact network pillar.

Comparative advantages