RHS 100x80x3.2 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 100x80 cal 11 (México) · Caño estructural 100x80 (Argentina)
The RHS 100x80x3.2 steel profile weighs 8.5 kg/m (5.72 lb/ft), has a depth of 100 mm (3.94 in), flange width 80 mm (3.15 in). Cross-sectional area: 1,084.67 mm². Moment of inertia Ix = 157.285 cm⁴, Iy = 111.599 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 3.2 mm ≈ 10 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 100 mm | 3.94 in |
| Width (b) | 80 mm | 3.15 in |
| Thickness (t) | 3.2 mm | 0.13 in |
| Fillet radius (r) | 6.4 mm | 0.25 in |
| Weight | 8.5 kg/m | 5.72 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,084.67 mm² | 1.681 in² |
| Moment of inertia (Ix) | 157.28 cm⁴ | 3.78 in⁴ |
| Moment of inertia (Iy) | 111.6 cm⁴ | 2.68 in⁴ |
| Elastic section modulus (Sx) | 31.46 cm³ | 1.920 in³ |
| Elastic section modulus (Sy) | 27.9 cm³ | 1.703 in³ |
| Plastic section modulus (Zx) | 37.5 cm³ | 2.288 in³ |
| Plastic section modulus (Zy) | 32.2 cm³ | 1.965 in³ |
| Radius of gyration (rx) | 3.81 cm | 1.499 in |
| Radius of gyration (ry) | 3.21 cm | 1.263 in |
Beam Calculator— RHS 100x80x3.2
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — RHS 100x80x3.2
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
53.64 mm
L/112
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
