EN0210 (Latest Version: EN 10210-1:2023 & EN 10210-2:2023) Hot Finished Structural Hollow Sections

When ordering, the following must be specified:  

● - Standard designation (EN 10210-1 & EN 10210-2)  

● - Type of hollow section (shape and dimensions)  

● - Steel grade (e.g., S235JRH, S355J2H, etc.)  

● - Delivery condition (usually "hot-finished")  

● - Quantity (length, number of pieces, or weight)  

● - Any additional testing or inspection requirements

The standard covers non-alloy steels (S235, S275, S355) and fine-grain steels (S275NH, S355NH, S420NH, etc.) with specified impact energy requirements. Common grades include:  

● - S235JRH  

● - S275J0H / S275J2H  

● - S355J0H / S355J2H / S355K2H  

● - S275NH / S355NH / S420NH (for low-temperature applications)

- Chemical composition limits for carbon (C), manganese (Mn), phosphorus (P), sulfur (S), etc.  

- Mechanical properties (yield strength, tensile strength, elongation, impact energy at specified temperatures).

● - Visual inspection for surface defects.  

● - Dimensional checks (tolerances as per EN 10210-2).  

● - Mechanical tests (tensile, impact, hardness if required).  

● - Non-destructive testing (NDT) if specified (ultrasonic, eddy current, etc.).  

● - Certification: Manufacturer must provide a Inspection Certificate (3.1 or 3.2 as per EN 10204).

- Each hollow section must be marked with:  

  - Manufacturer’s name/trademark  

  - Steel grade  

  - Heat number  

  - Dimensions  

- Surface protection (e.g., oiling, temporary corrosion protection) may be applied.

- Dimensional tolerances (outer dimensions, wall thickness, straightness, squareness).  

- Mass tolerances (deviation from theoretical weight).  

Conclusion  

EN 10210 provides comprehensive specifications for hot-finished structural steel hollow sections, ensuring quality in chemical composition, mechanical properties, and dimensional tolerances. It is widely used in construction, bridges, and other load-bearing structures.