Steel Section Catalog
RHS 30x50x1.5
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 30x50x1.5 steel profile weighs 1.8 kg/m (1.22 lb/ft), has a depth of 30 mm (1.18 in), flange width 50 mm (1.97 in). Cross-sectional area: 231 mm². Moment of inertia Ix = 3.54 cm⁴, Iy = 7.89 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 1.5 mm ≈ 16 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 30 mm | 1.18 in |
| Width (b) | 50 mm | 1.97 in |
| Thickness (t) | 1.5 mm | 0.06 in |
| Fillet radius (r) | 2.3 mm | 0.09 in |
| Weight | 1.8 kg/m | 1.22 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 231 mm² | 0.358 in² |
| Moment of inertia (Ix) | 3.54 cm⁴ | 0.09 in⁴ |
| Moment of inertia (Iy) | 7.89 cm⁴ | 0.19 in⁴ |
| Elastic section modulus (Sx) | 2.36 cm³ | 0.144 in³ |
| Elastic section modulus (Sy) | 3.16 cm³ | 0.193 in³ |
| Plastic section modulus (Zx) | 2.68 cm³ | 0.164 in³ |
| Plastic section modulus (Zy) | 3.84 cm³ | 0.234 in³ |
| Radius of gyration (rx) | 1.24 cm | 0.488 in |
| Radius of gyration (ry) | 1.85 cm | 0.728 in |
Beam Calculator— RHS 30x50x1.5
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mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 30x50x1.5
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
2383.47 mm
L/3
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
