RHS 100x80x10.3 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 100x80 (México) · Caño estructural 100x80 (Argentina)
The RHS 100x80x10.3 steel profile weighs 23.6 kg/m (15.88 lb/ft), has a depth of 100 mm (3.94 in), flange width 80 mm (3.15 in). Cross-sectional area: 3,010.435 mm². Moment of inertia Ix = 356.037 cm⁴, Iy = 248.673 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 100 mm | 3.94 in |
| Width (b) | 80 mm | 3.15 in |
| Thickness (t) | 10.3 mm | 0.41 in |
| Fillet radius (r) | 20.6 mm | 0.81 in |
| Weight | 23.6 kg/m | 15.88 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 3,010.43 mm² | 4.666 in² |
| Moment of inertia (Ix) | 356.04 cm⁴ | 8.55 in⁴ |
| Moment of inertia (Iy) | 248.67 cm⁴ | 5.97 in⁴ |
| Elastic section modulus (Sx) | 71.21 cm³ | 4.345 in³ |
| Elastic section modulus (Sy) | 62.17 cm³ | 3.794 in³ |
| Plastic section modulus (Zx) | 93.25 cm³ | 5.690 in³ |
| Plastic section modulus (Zy) | 79.56 cm³ | 4.855 in³ |
| Radius of gyration (rx) | 3.44 cm | 1.354 in |
| Radius of gyration (ry) | 2.87 cm | 1.132 in |
Beam Calculator— RHS 100x80x10.3
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 100x80x10.3
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
23.70 mm
L/253
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
