| Material Grade |
S355JR (High-Strength Structural Steel) |
— |
Complies with EN 10025-2:2004 standard |
| Chemical Composition |
C ≤0.24%, Si ≤0.55%, Mn ≤1.60%, P ≤0.045%, S ≤0.045%, N ≤0.012% |
— |
Controlled alloy content ensures high strength and weldability |
| Cross-Sectional Dimensions |
Web height: 120, Flange width: 60 |
mm |
Standard C-channel profile for structural stability |
| Typical Thickness (Web/Flange) |
5.0–7.0 mm (varies by manufacturer) |
mm |
Influences weight, strength, and load capacity |
| Weight per Meter (Approximate) |
10.5–13.8 kg/m (varies with exact thickness) |
kg/m |
Calculated based on cross-sectional dimensions and density |
| Yield Strength (Minimum) |
355 |
MPa |
Higher than S235JR, ideal for heavy-load applications |
| Tensile Strength |
470–630 |
MPa |
Superior tensile performance for demanding structural needs |
| Elongation (Minimum) |
≥21% (for thickness ≤16mm) |
% |
Ensures ductility for bending and forming without brittle failure |
| Impact Toughness |
≥27 J at +20°C (longitudinal test pieces) |
J |
Resistant to sudden impact loads in ambient conditions |
| Weldability |
Excellent |
— |
Compatible with standard welding processes (MIG, TIG, arc welding) |
| Formability |
Good |
— |
Can be cut, drilled, and bent for on-site customization |
| Corrosion Resistance (Base) |
Moderate |
— |
Enhanced with galvanization or painting for outdoor use |
| Surface Finish |
Mill finish |
— |
Clean, uniform surface ready for further treatment if needed |
| Typical Applications |
Heavy-duty frames, bridge components, industrial machinery supports, construction girders, and load-bearing structures |
— |
Preferred for projects requiring high strength-to-weight ratio |