Description
EN 10210-1/2 Grade S355J2H Steel Hollow Sections
EN 10210-1/2 Grade S355J2H is a non-alloy, hot-finished structural hollow section made from high-strength structural steel. It offers excellent toughness, high strength, and superior weldability, making it a preferred choice for structural and mechanical applications. The designation “J2” indicates impact testing at -20°C, while “H” refers to hollow section with guaranteed specified mechanical properties and compliance with impact testing.
Key Features:
- High yield strength of 355 MPa
- Excellent cold-forming and welding capabilities
- Impact tested at -20°C (Charpy V-notch)
- Hot-finished for uniform mechanical properties
- Low carbon equivalent for superior weldability
- Available in circular, square, and rectangular sections
Standards Compliance:
- EN 10210-1: Technical delivery conditions for hot-finished structural hollow sections
- EN 10210-2: Tolerances, dimensions, and sectional properties
EN 10210 Chemical Composition (% Max)
| Element | C | Mn | P | S | N |
|---|---|---|---|---|---|
| Max. | 0.22 | 1.60 | 0.035 | 0.035 | 0.012 |
EN 10210 Mechanical Properties
| Property | Value |
|---|---|
| Yield Strength | ≥ 355 MPa (for ≤ 16 mm) |
| Tensile Strength | 470–630 MPa |
| Elongation | ≥ 22% |
| Impact Energy (J2) | ≥ 27 J at -20°C |
EN 10210 Available Dimensions:
- Round Hollow Sections: Ø 21.3 mm – Ø 508 mm
- Square Hollow Sections: 25 mm × 25 mm to 400 mm × 400 mm
- Rectangular Hollow Sections: 50 mm × 25 mm to 500 mm × 300 mm
- Wall Thickness: 2 mm to 20 mm (depending on section)
Applications:
- Steel structures and construction frameworks
- Offshore and onshore platforms
- Bridges and cranes
- Mechanical engineering
- Pressure equipment and support structures
Advantages:
- Complies with European structural design standards
- Suitable for cold weather applications
- High reliability in dynamic and static loading conditions
- Uniform wall thickness ensures easy fabrication
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