CHS 406x40.5 AHMSA · Weight & Dimensions
AHMSA, cold-formed sections · Circular Hollow Section
Circular Hollow Sections (CHS) are round tubular profiles with the most efficient cross-section for compression. Used for columns, trusses, and architectural structures.
Also known as: Caño estructural redondo (Argentina)
The CHS 406x40.5 steel profile weighs 365.1 kg/m (245.32 lb/ft). Cross-sectional area: 46,504.211 mm². Moment of inertia Ix = 78,609.846 cm⁴, Iy = 78,609.846 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 40.5 mm | 1.59 in |
| Diameter (d) | 406 mm | 15.98 in |
| Weight | 365.1 kg/m | 245.32 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 46,504.21 mm² | 72.082 in² |
| Moment of inertia (Ix) | 78,609.85 cm⁴ | 1888.60 in⁴ |
| Moment of inertia (Iy) | 78,609.85 cm⁴ | 1888.60 in⁴ |
| Elastic section modulus (Sx) | 3,872.41 cm³ | 236.310 in³ |
| Elastic section modulus (Sy) | 3,872.41 cm³ | 236.310 in³ |
| Plastic section modulus (Zx) | 5,432.55 cm³ | 331.516 in³ |
| Plastic section modulus (Zy) | 5,432.55 cm³ | 331.516 in³ |
| Radius of gyration (rx) | 13 cm | 5.119 in |
| Radius of gyration (ry) | 13 cm | 5.119 in |
Beam Calculator— CHS 406x40.5
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 406x40.5
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.11 mm
L/55900
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
