RHS 180x80x4 Tata Steel Hybox · Weight & Dimensions
Tata Steel Hybox · 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.
Also known as: PTR 180x80 cal 8 (México) · Caño estructural 180x80 (Argentina)
The RHS 180x80x4 steel profile weighs 15.5 kg/m (10.42 lb/ft), has a depth of 180 mm (7.09 in), flange width 80 mm (3.15 in). Cross-sectional area: 1,974.796 mm². Moment of inertia Ix = 802.117 cm⁴, Iy = 226.67 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 4 mm ≈ 8 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 180 mm | 7.09 in |
| Width (b) | 80 mm | 3.15 in |
| Thickness (t) | 4 mm | 0.16 in |
| Fillet radius (r) | 8 mm | 0.31 in |
| Weight | 15.5 kg/m | 10.42 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,974.8 mm² | 3.061 in² |
| Moment of inertia (Ix) | 802.12 cm⁴ | 19.27 in⁴ |
| Moment of inertia (Iy) | 226.67 cm⁴ | 5.45 in⁴ |
| Elastic section modulus (Sx) | 89.12 cm³ | 5.439 in³ |
| Elastic section modulus (Sy) | 56.67 cm³ | 3.458 in³ |
| Plastic section modulus (Zx) | 111.81 cm³ | 6.823 in³ |
| Plastic section modulus (Zy) | 63.47 cm³ | 3.873 in³ |
| Radius of gyration (rx) | 6.37 cm | 2.509 in |
| Radius of gyration (ry) | 3.39 cm | 1.334 in |
Beam Calculator— RHS 180x80x4
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 180x80x4
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
10.52 mm
L/570
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
