Steel Section Catalog
RHS 50x30x3
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 50x30x3 steel profile weighs 3.3 kg/m (2.22 lb/ft), has a depth of 50 mm (1.97 in), flange width 30 mm (1.18 in). Cross-sectional area: 444 mm². Moment of inertia Ix = 14.21 cm⁴, Iy = 6.18 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 3 mm ≈ 11 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 50 mm | 1.97 in |
| Width (b) | 30 mm | 1.18 in |
| Thickness (t) | 3 mm | 0.12 in |
| Fillet radius (r) | 6 mm | 0.24 in |
| Weight | 3.3 kg/m | 2.22 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 444 mm² | 0.688 in² |
| Moment of inertia (Ix) | 14.21 cm⁴ | 0.34 in⁴ |
| Moment of inertia (Iy) | 6.18 cm⁴ | 0.15 in⁴ |
| Elastic section modulus (Sx) | 5.69 cm³ | 0.347 in³ |
| Elastic section modulus (Sy) | 4.12 cm³ | 0.251 in³ |
| Plastic section modulus (Zx) | 7.13 cm³ | 0.435 in³ |
| Plastic section modulus (Zy) | 4.91 cm³ | 0.300 in³ |
| Radius of gyration (rx) | 1.79 cm | 0.705 in |
| Radius of gyration (ry) | 1.18 cm | 0.465 in |
Beam Calculator— RHS 50x30x3
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mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 50x30x3
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
593.77 mm
L/10
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
