Steel Section Catalog
RHS 160x80x4
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 160x80x4 steel profile weighs 14.1 kg/m (9.48 lb/ft), has a depth of 160 mm (6.30 in), flange width 80 mm (3.15 in). Cross-sectional area: 1,856 mm². Moment of inertia Ix = 623.58 cm⁴, Iy = 209.89 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 4 mm ≈ 8 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 160 mm | 6.30 in |
| Width (b) | 80 mm | 3.15 in |
| Thickness (t) | 4 mm | 0.16 in |
| Fillet radius (r) | 8 mm | 0.31 in |
| Weight | 14.1 kg/m | 9.48 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,856 mm² | 2.877 in² |
| Moment of inertia (Ix) | 623.58 cm⁴ | 14.98 in⁴ |
| Moment of inertia (Iy) | 209.89 cm⁴ | 5.04 in⁴ |
| Elastic section modulus (Sx) | 77.95 cm³ | 4.757 in³ |
| Elastic section modulus (Sy) | 52.47 cm³ | 3.202 in³ |
| Plastic section modulus (Zx) | 96.13 cm³ | 5.866 in³ |
| Plastic section modulus (Zy) | 59.01 cm³ | 3.601 in³ |
| Radius of gyration (rx) | 5.8 cm | 2.283 in |
| Radius of gyration (ry) | 3.36 cm | 1.323 in |
Beam Calculator— RHS 160x80x4
3D preview unavailable
Your device does not support WebGL. The 2D diagram below is still fully functional.
mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 160x80x4
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
13.53 mm
L/443
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
