CHS 121x11 GOST · Weight & Dimensions
GOST, 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 121x11 steel profile weighs 29.8 kg/m (20.05 lb/ft). Cross-sectional area: 3,801.327 mm². Moment of inertia Ix = 580.7 cm⁴, Iy = 580.7 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 11 mm | 0.43 in |
| Diameter (d) | 121 mm | 4.76 in |
| Weight | 29.8 kg/m | 20.05 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 3,801.33 mm² | 5.892 in² |
| Moment of inertia (Ix) | 580.7 cm⁴ | 13.95 in⁴ |
| Moment of inertia (Iy) | 580.7 cm⁴ | 13.95 in⁴ |
| Elastic section modulus (Sx) | 95.98 cm³ | 5.857 in³ |
| Elastic section modulus (Sy) | 95.98 cm³ | 5.857 in³ |
| Plastic section modulus (Zx) | 133.54 cm³ | 8.149 in³ |
| Plastic section modulus (Zy) | 133.54 cm³ | 8.149 in³ |
| Radius of gyration (rx) | 3.91 cm | 1.539 in |
| Radius of gyration (ry) | 3.91 cm | 1.539 in |
Beam Calculator— CHS 121x11
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 121x11
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
14.53 mm
L/413
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
