EN 10219 standard details Cold formed welded structural hollow sections from non-alloy steels and fine-grained steels. Material Thickness in mm Min. Elongation (%) t<16 16>t<40 t<3 3>t<40 t<40 S235JRH 235 225 360-510 340-470 24 S275J0H 275 265 430-580 410-560 20 S275J2H 275 265 430-580 410-560 20 S355J0H 355 345 510-680 490-630 20 S355J2H 355 345 510-680 490-630 20 Calcium Silicon Alloy,Silicon Calcium Alloy,Ferro calcium silicon,Calcium Silicon Lump ANYANG TIEFA METALLURGY CO.,LTD , https://www.ferroalloytiefa.com
In addition to mechanical properties, EN 10219 also defines manufacturing tolerances for different types of hollow sections. These tolerances ensure consistency and quality during production. For example, the outside dimensions of round hollow sections can vary by ±1% with a minimum of ±0.5mm and a maximum of ±10mm. Square and rectangular sections have similar tolerances but without the upper limit on the percentage variation.
The thickness tolerance depends on the section's wall thickness. For materials with a thickness less than or equal to 5mm, the tolerance is ±10%, while for thicker sections, it’s ±0.5mm. Out-of-roundness is limited to 2% for round sections, and squareness of sides must be within 90° ± 1° for square and rectangular sections.
Other important tolerances include convexity, external corner profile, twist, straightness, and mass. These specifications help maintain the structural integrity and performance of the hollow sections in real-world applications. Understanding these standards is essential for engineers and fabricators to ensure compliance and optimal use of materials in construction projects.
EN 10219 standard details
EN 10219 is a European standard that specifies cold-formed welded structural hollow sections made from non-alloy and fine-grained steels. These sections are commonly used in construction and engineering applications due to their strength, durability, and versatility. The standard outlines the mechanical properties and dimensional tolerances for different steel grades.
Below is a detailed table summarizing the material properties of various steel grades under EN 10219: