RHS 120x80x2.5 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 120x80 cal 13 (México) · Caño estructural 120x80 (Argentina)
The RHS 120x80x2.5 steel profile weighs 7.5 kg/m (5.06 lb/ft), has a depth of 120 mm (4.72 in), flange width 80 mm (3.15 in). Cross-sectional area: 958.905 mm². Moment of inertia Ix = 195.75 cm⁴, Iy = 105.189 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 2.5 mm ≈ 12 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 120 mm | 4.72 in |
| Width (b) | 80 mm | 3.15 in |
| Thickness (t) | 2.5 mm | 0.10 in |
| Fillet radius (r) | 5 mm | 0.20 in |
| Weight | 7.5 kg/m | 5.06 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 958.9 mm² | 1.486 in² |
| Moment of inertia (Ix) | 195.75 cm⁴ | 4.70 in⁴ |
| Moment of inertia (Iy) | 105.19 cm⁴ | 2.53 in⁴ |
| Elastic section modulus (Sx) | 32.63 cm³ | 1.991 in³ |
| Elastic section modulus (Sy) | 26.3 cm³ | 1.605 in³ |
| Plastic section modulus (Zx) | 39.07 cm³ | 2.384 in³ |
| Plastic section modulus (Zy) | 29.65 cm³ | 1.809 in³ |
| Radius of gyration (rx) | 4.52 cm | 1.779 in |
| Radius of gyration (ry) | 3.31 cm | 1.304 in |
Beam Calculator— RHS 120x80x2.5
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 120x80x2.5
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
43.10 mm
L/139
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
