RHS 140x80x8.2 Açotubo · Weight & Dimensions
Açotubo, cold-formed sections · 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 140x80 (México) · Caño estructural 140x80 (Argentina)
The RHS 140x80x8.2 steel profile weighs 24.9 kg/m (16.70 lb/ft), has a depth of 140 mm (5.51 in), flange width 80 mm (3.15 in). Cross-sectional area: 3,165.882 mm². Moment of inertia Ix = 747.524 cm⁴, Iy = 306.851 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 140 mm | 5.51 in |
| Width (b) | 80 mm | 3.15 in |
| Thickness (t) | 8.2 mm | 0.32 in |
| Fillet radius (r) | 16.4 mm | 0.65 in |
| Weight | 24.9 kg/m | 16.70 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 3,165.88 mm² | 4.907 in² |
| Moment of inertia (Ix) | 747.52 cm⁴ | 17.96 in⁴ |
| Moment of inertia (Iy) | 306.85 cm⁴ | 7.37 in⁴ |
| Elastic section modulus (Sx) | 106.79 cm³ | 6.517 in³ |
| Elastic section modulus (Sy) | 76.71 cm³ | 4.681 in³ |
| Plastic section modulus (Zx) | 137.24 cm³ | 8.375 in³ |
| Plastic section modulus (Zy) | 92.35 cm³ | 5.636 in³ |
| Radius of gyration (rx) | 4.86 cm | 1.913 in |
| Radius of gyration (ry) | 3.11 cm | 1.226 in |
Beam Calculator— RHS 140x80x8.2
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 140x80x8.2
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
11.29 mm
L/532
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
