Description
Technical Parameters
hot rolled S355J0 UB 203x102x23 Universal Beam
Specifications
| parameter | Measured value (unit: mm) |
|---|---|
| Belly height | 203.2 |
| Flange Width | 101.8 |
| Web thickness | 5.4 |
| Flange thickness | 9.3 |
| Theoretical weight | 23kg/m |
Application areas of S355J0 UB 203x102x23 h beam steel structure
Building structure: high-rise building core tube support frame, industrial plant truss main beam.
Bridges and transportation: highway bridge main beam, rail transit platform support structure.
Heavy machinery: port crane track beam, mining equipment base.
S355J0 material h beam characteristics
Chemical composition: Carbon (C) ≤ 0.22%, Silicon (Si) ≤ 0.55%, Manganese (Mn) ≤ 1.60%, Phosphorus (P), Sulfur (S) ≤ 0.025%, Contains trace amounts of alloying elements such as vanadium (V) and niobium (Nb) to refine the grains.
Mechanical properties: Yield strength ≥ 355MPa, tensile strength 470-630MPa, elongation at room temperature ≥ 18%, 0℃ impact energy ≥ 27J.
| element | Content range (maximum value) | Functional features description |
|---|---|---|
| Carbon (C) | ≤0.22% | Basic strengthening elements, controlling carbon equivalent ≤ 0.40% |
| Silicon (Si) | ≤0.55% | Deoxidizer, improve the purity of molten steel |
| Manganese (Mn) | ≤1.60% | Enhance strength and NMenability, optimize fatigue resistance |
| Phosphorus (P) | ≤0.025% | Strict control to reduce the risk of cold brittleness |
| Sulfur (S) | ≤0.025% | Limit hot brittleness and improve processing performance |
| Chromium (Cr) | ≤0.30% | Trace addition to improve corrosion resistance |
| Ni | ≤0.50% | Improve low temperature toughness and impact resistance |
| Copper (Cu) | ≤0.55% | Enhanced atmospheric corrosion resistance |
| Mo | ≤0.10% | Refine grains and improve high temperature strength |
| Aluminum (Al) | ≥0.020% (deoxidation residue) | Refined grains, optimized toughness |
| Titanium (Ti) | ≤0.050% (added in some processes) | Stabilize carbonitrides and inhibit grain coarsening |
