Steel Section Catalog
RHS 400x200x8
EN — Rectangular Hollow Section
Rectangular Hollow Sections (RHS) are tubular profiles with excellent torsional resistance and aesthetic appeal. Used for columns, trusses, and exposed structural elements.
The RHS 400x200x8 steel profile weighs 70.4 kg/m (47.31 lb/ft), has a depth of 400 mm (15.75 in), flange width 200 mm (7.87 in). Cross-sectional area: 9,344 mm². Moment of inertia Ix = 19,844.57 cm⁴, Iy = 6,732.25 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 400 mm | 15.75 in |
| Width (b) | 200 mm | 7.87 in |
| Thickness (t) | 8 mm | 0.31 in |
| Fillet radius (r) | 16 mm | 0.63 in |
| Weight | 70.4 kg/m | 47.31 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 9,344 mm² | 14.483 in² |
| Moment of inertia (Ix) | 19,844.57 cm⁴ | 476.77 in⁴ |
| Moment of inertia (Iy) | 6,732.25 cm⁴ | 161.74 in⁴ |
| Elastic section modulus (Sx) | 992.23 cm³ | 60.550 in³ |
| Elastic section modulus (Sy) | 673.23 cm³ | 41.083 in³ |
| Plastic section modulus (Zx) | 1,217.02 cm³ | 74.267 in³ |
| Plastic section modulus (Zy) | 749.82 cm³ | 45.757 in³ |
| Radius of gyration (rx) | 14.57 cm | 5.736 in |
| Radius of gyration (ry) | 8.49 cm | 3.343 in |
Beam Calculator— RHS 400x200x8
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mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 400x200x8
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.43 mm
L/14112
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
