Quality Structural Steel H Beam S355JR
S355JR High-quality H-beam material
Standard: EN 10025-2 (European standard).
Grade: S355JR
Name: "S" means structural steel; "355" means the minimum yield strength is 355 MPa; "JR" means Charpy impact test at 20°C.
Equivalent: Equivalent to Q345B (China GB standard) and ASTM A572 Grade 50 (US standard).
Mechanical properties of S355JR structural steel
Yield strength (ReH): ≥355 MPa.
Tensile strength (Rm): 470–630 MPa.
Elongation (A₅): ≥22%78.
Impact toughness (KV): ≥27 J, 20°C (JR mark).
Density: 7.85 g/cm³.
S355JR H-beam structural steel complies with EN 10034 standard, and common series include UC (Universal Column) and UB (Universal Beam) .
Main specifications include
| Profile | Dimensions (mm) | Weight (kg/m) |
|---|---|---|
| UC 152×152×30 | 152.4×152.2×6.8×6.8 | 30.0 |
| UC 254×254×73 | 254.1×254.6×8.6×14.2 | 73.1 |
| UB 356×171×45 | 352.0×173.2×8.8×13.2 | 45.0 |
S355JR H-beam is widely used in
Construction: high-rise buildings, industrial plants and roof trusses.
Infrastructure: bridges, railway supports and offshore platforms.
Heavy Machinery: equipment frames, hydraulic systems and mining structures.
Shipbuilding: used in hulls, decks and bulkheads due to strength-to-weight ratio.
Comparison with Similar Grades
| Grade | Yield Strength (MPa) | Key Distinction |
|---|---|---|
| S235JR | 235 | Lower strength, cost-effective |
| S355JR | 355 | Balanced performance for premium use |
| S420ML | 420 | Higher toughness for extreme loads |
GNEE Steel H Beam Steel Manufacturer
GNEE Steel was established in 2008, our main products are section steel, angle steel, flat steel, wear-resistant steel, etc. We have established long-term cooperative relations with well-known steel mills and are happy to provide you with the best prices and product suggestions. You are welcome to visit our company.
