European Standard H-beam Material S355JR
The "S" in S355JR h beam structure stands for structural steel, "355" stands for the minimum yield strength in MPa, and "JR" stands for the material's impact energy at room temperature (27 Joules at 20°C). When manufactured as H-beam steel, S355JR offers high load-bearing capacity, excellent mechanical properties, and versatility.
S355JR H-beam steel is produced using a hot rolling process, which involves heating the billet above its recrystallization temperature and then passing it through rollers to achieve the desired H-shaped profile, which ensures consistent dimensions and enhances the material's mechanical properties.
S355JR h beam material is widely used in industries that require high-strength materials. Common applications include building frames, bridges, and industrial structures; railway stations, airports, and highways; support structures for cranes, equipment, and machinery; power plants, wind turbine towers, and offshore platforms.
Advantages of S355JR h-shaped beam
High Strength: Superior load-bearing capacity compared to lower grade steels.
Toughness: Excellent impact and fatigue resistance.
Weldability: Can be easily welded using conventional methods.
Durability: Not easily deformed under heavy loads and harsh conditions.
Comparison with other grades
S355JR has a higher yield strength and better performance under heavy loads compared to S235JR, making it an ideal choice for demanding applications. However, it can be slightly more expensive due to its enhanced properties.
Chemical composition of S355JR h-shaped beam
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.24 |
| Silicon (Si) | ≤ 0.55 |
| Manganese (Mn) | ≤ 1.60 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Nitrogen (N) |
≤ 0.012 |
Mechanical properties of S355JR h-beam structure steel
| Property | Value |
|---|---|
| Yield Strength (ReH) | ≥ 355 MPa |
| Tensile Strength (Rm) | 470–630 MPa |
| Elongation (A) | ≥ 22% |
| Impact Energy (Charpy V-notch) | ≥ 27 J at 20°C |
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.
