S355J0 UB 305*102*25 305*102*28 Universal Steel Beams

Chemical composition of S355J0 h-shaped iron beam
Basic elements: carbon (C) ≤ 0.20%, manganese (Mn) ≤ 1.60%, silicon (Si) ≤ 0.55%, phosphorus (P) ≤ 0.040%, sulfur (S) ≤ 0.040%.
Alloy elements: chromium (Cr) ≤ 0.30%, nickel (Ni) ≤ 0.50%, copper (Cu) ≤ 0.55%, molybdenum (Mo) ≤ 0.10%.

Mechanical properties of S355J0 h-shaped beam
Yield strength: ≥355MPa (thickness ≤16mm)
Tensile strength: 470-630MPa
Elongation: ≥22%
Low-temperature toughness: 0℃ impact energy ≥27J (KV2), -20℃ impact energy ≥27J

Application areas of S355J0 h-section steel beam
Building structure: used for large steel structures such as high-rise buildings and gymnasiums to meet high load and earthquake resistance requirements.
Bridge engineering: suitable for beams and supporting structures of highway and railway bridges, with excellent fatigue resistance.
Machinery manufacturing: as bearing seats, crane arms and other components of heavy machinery, bearing heavy loads and vibrations.
Ship and marine engineering: used in corrosion-resistant environments such as hull decks and offshore platforms.