Steel Section Catalog
RHS 40x30x2
BR — 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 40x30x2 steel profile weighs 2.0 kg/m (1.32 lb/ft), has a depth of 40 mm (1.57 in), flange width 30 mm (1.18 in). Cross-sectional area: 264 mm². Moment of inertia Ix = 5.89 cm⁴, Iy = 3.73 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 2 mm ≈ 14 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 40 mm | 1.57 in |
| Width (b) | 30 mm | 1.18 in |
| Thickness (t) | 2 mm | 0.08 in |
| Fillet radius (r) | 4 mm | 0.16 in |
| Weight | 2.0 kg/m | 1.32 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 264 mm² | 0.409 in² |
| Moment of inertia (Ix) | 5.89 cm⁴ | 0.14 in⁴ |
| Moment of inertia (Iy) | 3.73 cm⁴ | 0.09 in⁴ |
| Elastic section modulus (Sx) | 2.95 cm³ | 0.180 in³ |
| Elastic section modulus (Sy) | 2.48 cm³ | 0.151 in³ |
| Plastic section modulus (Zx) | 3.58 cm³ | 0.218 in³ |
| Plastic section modulus (Zy) | 2.92 cm³ | 0.178 in³ |
| Radius of gyration (rx) | 1.49 cm | 0.587 in |
| Radius of gyration (ry) | 1.19 cm | 0.469 in |
Beam Calculator— RHS 40x30x2
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mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 40x30x2
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
1432.51 mm
L/4
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
