RHS 120x100x4.78 Acindar · Weight & Dimensions
Acindar, 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 120x100 cal 6 (México) · Caño estructural 120x100 (Argentina)
The RHS 120x100x4.78 steel profile weighs 15.3 kg/m (10.30 lb/ft), has a depth of 120 mm (4.72 in), flange width 100 mm (3.94 in). Cross-sectional area: 1,952.803 mm². Moment of inertia Ix = 404.184 cm⁴, Iy = 304.974 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 4.78 mm ≈ 7 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 120 mm | 4.72 in |
| Width (b) | 100 mm | 3.94 in |
| Thickness (t) | 4.8 mm | 0.19 in |
| Fillet radius (r) | 9.6 mm | 0.38 in |
| Weight | 15.3 kg/m | 10.30 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,952.8 mm² | 3.027 in² |
| Moment of inertia (Ix) | 404.18 cm⁴ | 9.71 in⁴ |
| Moment of inertia (Iy) | 304.97 cm⁴ | 7.33 in⁴ |
| Elastic section modulus (Sx) | 67.36 cm³ | 4.111 in³ |
| Elastic section modulus (Sy) | 60.99 cm³ | 3.722 in³ |
| Plastic section modulus (Zx) | 80.74 cm³ | 4.927 in³ |
| Plastic section modulus (Zy) | 71.27 cm³ | 4.349 in³ |
| Radius of gyration (rx) | 4.55 cm | 1.791 in |
| Radius of gyration (ry) | 3.95 cm | 1.556 in |
Beam Calculator— RHS 120x100x4.78
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 120x100x4.78
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
20.88 mm
L/287
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
