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S355JR UB 457*152*82 Structural Steel Beam
Specification model: UB 457×152×82 h section steel (height 457mm, flange width 152mm, weight about 82kg per meter).
Material grade: S355JR h beam structure is a low alloy steel that complies with EN standards. The quality grades include S235/S275/S355 series, with medium strength and high toughness.
Implementation standard: EN 10025-2, applicable to hot-rolled structural steel products.
Production process and treatment of UB 457×152×82 h beam steel structure
Hot rolling process: High temperature rolling technology is adopted, and multi-pass processing rate control is used to ensure the uniformity and mechanical properties of the steel section.
Surface treatment: Some products are galvanized, and parameters such as plating solution composition (such as chromium ion concentration) and current density need to be controlled to improve corrosion resistance.
Normalizing treatment: Used to eliminate internal stress or prepare the organization for subsequent annealing, suitable for light-loaded parts.
Quenching and annealing: Medium and high carbon steel billets need to be annealed to improve machinability.
Chemical properties of S355JR h type beam
Mechanical properties: Yield strength ≥355MPa, tensile strength range 490-630MPa, elongation ≥22%, good low temperature impact toughness (meet J0 grade requirements).
Chemical composition: Carbon content ≤0.24%, manganese content ≤1.60%, phosphorus and sulfur content strictly controlled below 0.045%.
Application of S355JR UB 457×152×82 Structural Steel Universal Beam
Photovoltaic bracket: Suitable for large photovoltaic power stations, providing high stability and wind load resistance.
Buildings and bridges: Used for high-rise building frames, bridge support structures, etc.
Mechanical equipment: Including load-bearing components such as engineering machinery, shipbuilding, and vehicle chassis.
