S355JR hot rolled H beam steel HEA100 HEA200

HEA100 HEA200 S355JR hot rolled H beam adopts intelligent gradient cooling technology, and the temperature difference between the web and flange is precisely controlled within 20℃, stabilizing the yield strength in the range of 355-420MPa. Its innovative Nb-V composite microalloy design achieves a Z-direction cross-sectional shrinkage rate of over 45%.

Equipped with a laser online thickness measurement system, achieving ±0.3mm dimensional tolerance control, and adjusting rolling parameters in real-time through 5G transmission. The unique oxide skin control process results in a surface roughness Ra ≤ 12.5μm.

As a standard component for prefabricated buildings, S355JR H beam has obtained CE and ISO certifications, achieving a 50% increase in lifting efficiency in modular factory construction.