254x146x37 254x146x43 S355J0 H Profile Iron
Chemical composition (typical value) of S355J0 h shaped steel
Carbon (C)≤0.22%, Manganese (Mn)≤1.60%, Phosphorus (P)≤0.025%, Sulphur (S)≤0.025%, Silicon (Si) is used for deoxidation strengthening.
Low alloy composition: Improve comprehensive performance through microalloying, taking into account both strength and toughness.
Material characteristics of S355J0 h beam structure
Mechanical properties: Yield strength ≥ 355MPa, Tensile strength ≥ 470MPa (typical value 590MPa), meeting high load requirements.
Low temperature toughness: Adapt to room temperature to low temperature environment, impact toughness meets J0 grade (20℃ impact energy ≥ 27J).
Plastic deformation capacity: Elongation ≥ 22%, suitable for complex structure processing.
Welding and processing performance of S355J0 steel h column: Support manual arc welding, submerged arc welding and other processes, good crack resistance after welding; easy to cut, cold bend and hot roll forming, suitable for high-precision steel structure manufacturing.
Processing and application performance of S355J0 h section beam
Corrosion resistance: Good stability in conventional atmospheric environment, and coating protection is required in humid or acidic and alkaline environments.
Application areas:
Heavy duty shelves: bear large tonnage of cargo storage, excellent support stability.
Bridge and building frames: used in key load-bearing parts such as high-rise buildings, industrial plants and bridge main beams.
Machinery base: scenes where the base of heavy equipment requires high rigidity and fatigue resistance.
