European HSS Section Properties — CHS/RHS/SHS per EN 10210
Complete section property reference for European structural hollow sections per EN 10210 (hot-finished) and EN 10219 (cold-formed). Circular hollow sections (CHS), rectangular hollow sections (RHS), and square hollow sections (SHS). Dimensions, wall thicknesses, cross-sectional area, moments of inertia, section moduli, and radii of gyration.
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EN 10210 Hot-Finished vs EN 10219 Cold-Formed
| Property | EN 10210 (Hot-Finished) | EN 10219 (Cold-Formed) |
|---|---|---|
| Manufacturing process | Hot-finished seamless or welded | Cold-formed with subsequent heat treatment (optional) |
| Residual stresses | Lower | Higher |
| Corner radius (SHS/RHS) | Outer: 2-3×t | Outer: 2-3×t |
| Buckling curve | a (α = 0.21) | c (α = 0.49) |
| Typical grades | S235J2H, S355J2H | S235JRH, S355J0H |
Circular Hollow Sections (CHS) — EN 10210
| Designation | D (mm) | t (mm) | A (cm²) | I (cm⁴) | W_el (cm³) | i (cm) | Mass (kg/m) |
|---|---|---|---|---|---|---|---|
| CHS 88.9×4 | 88.9 | 4.0 | 10.7 | 94.6 | 21.3 | 2.98 | 8.38 |
| CHS 88.9×5 | 88.9 | 5.0 | 13.2 | 115 | 25.8 | 2.95 | 10.3 |
| CHS 114.3×5 | 114.3 | 5.0 | 17.2 | 257 | 44.9 | 3.87 | 13.5 |
| CHS 139.7×6 | 139.7 | 6.0 | 25.2 | 564 | 80.7 | 4.73 | 19.8 |
| CHS 139.7×8 | 139.7 | 8.0 | 33.1 | 720 | 103 | 4.66 | 26.0 |
| CHS 168.3×6 | 168.3 | 6.0 | 30.6 | 1003 | 119 | 5.73 | 24.0 |
| CHS 168.3×8 | 168.3 | 8.0 | 40.3 | 1295 | 154 | 5.67 | 31.6 |
| CHS 219.1×8 | 219.1 | 8.0 | 53.1 | 2967 | 271 | 7.48 | 41.6 |
| CHS 219.1×10 | 219.1 | 10.0 | 65.7 | 3586 | 327 | 7.39 | 51.6 |
| CHS 273×10 | 273 | 10.0 | 82.6 | 7149 | 524 | 9.30 | 64.9 |
| CHS 323.9×10 | 323.9 | 10.0 | 98.6 | 12125 | 748 | 11.09 | 77.4 |
| CHS 406.4×12 | 406.4 | 12.0 | 149 | 28188 | 1387 | 13.79 | 117 |
Square Hollow Sections (SHS) — EN 10210
| Designation | B×B (mm) | t (mm) | A (cm²) | I (cm⁴) | W_pl (cm³) | i (cm) | Mass (kg/m) |
|---|---|---|---|---|---|---|---|
| SHS 60×60×4 | 60×60 | 4.0 | 8.50 | 43.1 | 17.4 | 2.25 | 6.68 |
| SHS 80×80×5 | 80×80 | 5.0 | 14.4 | 130 | 39.5 | 3.00 | 11.3 |
| SHS 100×100×5 | 100×100 | 5.0 | 18.2 | 269 | 65.2 | 3.84 | 14.3 |
| SHS 100×100×8 | 100×100 | 8.0 | 27.5 | 380 | 96.7 | 3.71 | 21.6 |
| SHS 120×120×6 | 120×120 | 6.0 | 26.5 | 563 | 114 | 4.61 | 20.8 |
| SHS 150×150×8 | 150×150 | 8.0 | 43.3 | 1428 | 232 | 5.74 | 34.0 |
| SHS 150×150×10 | 150×150 | 10.0 | 52.5 | 1672 | 278 | 5.64 | 41.2 |
| SHS 200×200×10 | 200×200 | 10.0 | 72.6 | 4322 | 528 | 7.72 | 57.0 |
| SHS 200×200×12.5 | 200×200 | 12.5 | 88.9 | 5121 | 637 | 7.59 | 69.8 |
Rectangular Hollow Sections (RHS) — EN 10210
| Designation | B×D (mm) | t (mm) | A (cm²) | I_y (cm⁴) | I_z (cm⁴) | W_pl,y (cm³) | Mass (kg/m) |
|---|---|---|---|---|---|---|---|
| RHS 100×60×4 | 100×60 | 4.0 | 11.6 | 161 | 72 | 41.1 | 9.09 |
| RHS 120×80×5 | 120×80 | 5.0 | 18.2 | 359 | 184 | 74.9 | 14.3 |
| RHS 150×100×6 | 150×100 | 6.0 | 27.3 | 807 | 414 | 135 | 21.4 |
| RHS 150×100×8 | 150×100 | 8.0 | 35.2 | 995 | 498 | 170 | 27.7 |
| RHS 200×100×8 | 200×100 | 8.0 | 43.3 | 2340 | 785 | 286 | 34.0 |
| RHS 200×120×8 | 200×120 | 8.0 | 47.3 | 2737 | 1164 | 335 | 37.1 |
| RHS 250×150×10 | 250×150 | 10.0 | 72.6 | 6162 | 2692 | 602 | 57.0 |
| RHS 300×200×10 | 300×200 | 10.0 | 92.6 | 11888 | 6062 | 975 | 72.7 |
| RHS 300×200×12.5 | 300×200 | 12.5 | 114 | 14232 | 7138 | 1185 | 89.3 |
Plastic Section Modulus Comparison
For the same mass, SHS/RHS sections offer higher torsional stiffness and bidirectional strength compared to open sections:
| Section | Mass (kg/m) | W_pl,y (cm³) | Torsional Constant I_t (cm⁴) |
|---|---|---|---|
| IPE 300 | 42.2 | 628 | 20.2 |
| HEA 300 | 88.3 | 1383 | 89.5 |
| SHS 200×200×10 | 57.0 | 528 | 6690 |
| RHS 300×200×10 | 72.7 | 975 | 9120 |
Note the very high torsional constants for closed sections — orders of magnitude higher than open I-sections.
Frequently Asked Questions
What is the difference between EN 10210 and EN 10219 hollow sections?
EN 10210 covers hot-finished hollow sections with lower residual stresses and buckling curve a. EN 10219 covers cold-formed sections with higher residual stresses and buckling curve c. Hot-finished sections generally have better toughness and are preferred for primary structural members. Cold-formed sections are more economical and widely available.
What section modulus should I use for EN 1993 design — elastic or plastic?
Use the plastic section modulus W_pl for Class 1 and 2 sections, and the elastic section modulus W_el for Class 3 sections. For SHS/RHS in S355, most standard sections are Class 1 (d/t ≤ 50ε² for CHS, c/t ≤ 33ε for SHS flange). W_pl is typically 12-18% higher than W_el for standard hollow sections.
Related Pages
- European Beam Sizes — IPE, HEA, HEB, HEM dimensions
- European Steel Properties — fy/fu mechanical properties
- Compact Section Limits — Class 1-4 per Table 5.2
- All European References
Educational reference only. Section properties per EN 10210-2:2019 (hot-finished) and EN 10219-2:2019 (cold-formed). Verify actual manufacturer datasheets for exact values. Results are PRELIMINARY — NOT FOR CONSTRUCTION without independent verification.
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