Steel Section Catalog
CHS 406.4x12.5
EN — 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.
The CHS 406.4x12.5 steel profile weighs 121.0 kg/m (81.31 lb/ft). Cross-sectional area: 15,468.4 mm². Moment of inertia Ix = 30,030.67 cm⁴, Iy = 30,030.67 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 12.5 mm | 0.49 in |
| Diameter (d) | 406.4 mm | 16.00 in |
| Weight | 121.0 kg/m | 81.31 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 15,468.4 mm² | 23.976 in² |
| Moment of inertia (Ix) | 30,030.67 cm⁴ | 721.49 in⁴ |
| Moment of inertia (Iy) | 30,030.67 cm⁴ | 721.49 in⁴ |
| Elastic section modulus (Sx) | 1,477.89 cm³ | 90.187 in³ |
| Elastic section modulus (Sy) | 1,477.89 cm³ | 90.187 in³ |
| Plastic section modulus (Zx) | 1,940.12 cm³ | 118.394 in³ |
| Plastic section modulus (Zy) | 1,940.12 cm³ | 118.394 in³ |
| Radius of gyration (rx) | 13.93 cm | 5.484 in |
| Radius of gyration (ry) | 13.93 cm | 5.484 in |
Beam Calculator— CHS 406.4x12.5
3D preview unavailable
Your device does not support WebGL. The 2D diagram below is still fully functional.
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 406.4x12.5
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.28 mm
L/21355
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
