S355J2 HEB280x280x10.5x18 H Beam Structural

HEB280x280x10.5x18 Specifications
Cross-section height: 280mm
Flange width: 280mm
Web thickness: 10.5mm
Flange thickness: 18mm

S355J2 Material characteristics
Chemical composition: S355J2 is a low-alloy high-strength structural steel that complies with European standard EN 10025-2. Its chemical composition is based on low carbon, low sulfur and phosphorus, with carbon (C) content ≤0.24%, manganese (Mn) content ≤1.60%, silicon (Si) content ≤0.55%, phosphorus (P) and sulfur (S) content ≤0.025%, and also contains copper (Cu) ≤0.55%, chromium (Cr) ≤0.30%, nickel (Ni) ≤0.50% and other elements. The reasonable combination of these elements improves the comprehensive performance of the steel.

Mechanical properties: The minimum yield strength is 355MPa, the tensile strength is between 450-680MPa, and the elongation after fracture is ≥18%. It can still maintain excellent impact toughness at -20℃ low temperature environment, has good plasticity and toughness, and can withstand large loads and impacts.

Processing performance: It is produced by hot rolling or normalizing rolling process, has good weldability and processability, can be easily cut, formed and welded, and the welded joints are of stable quality, high strength, and not easy to produce cracks and other defects. It is suitable for various complex processing needs.

S355J2 HEB280x280x10.5x18 Application
Construction field: Commonly used in key components such as beams and columns, supporting structures in high-rise buildings, as well as roof trusses and crane beams of large buildings, etc., which can withstand large loads and provide stable support for buildings.

Bridge engineering: It can be used as the main beam, cross beam and other load-bearing structures of the bridge to bear the loads of vehicles, pedestrians, etc. Its good fatigue resistance and impact resistance can adapt to various stress conditions during the use of the bridge and extend the service life of the bridge.

Mechanical manufacturing: It can be used to manufacture equipment frames, bases and other components, which can withstand various forces and vibrations during the operation of the equipment and ensure the stability and reliability of the equipment.