CHS 121x25 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 121x25 steel profile weighs 59.2 kg/m (39.78 lb/ft). Cross-sectional area: 7,539.822 mm². Moment of inertia Ix = 927.492 cm⁴, Iy = 927.492 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 25 mm | 0.98 in |
| Diameter (d) | 121 mm | 4.76 in |
| Weight | 59.2 kg/m | 39.78 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 7,539.82 mm² | 11.687 in² |
| Moment of inertia (Ix) | 927.49 cm⁴ | 22.28 in⁴ |
| Moment of inertia (Iy) | 927.49 cm⁴ | 22.28 in⁴ |
| Elastic section modulus (Sx) | 153.3 cm³ | 9.355 in³ |
| Elastic section modulus (Sy) | 153.3 cm³ | 9.355 in³ |
| Plastic section modulus (Zx) | 235.61 cm³ | 14.378 in³ |
| Plastic section modulus (Zy) | 235.61 cm³ | 14.378 in³ |
| Radius of gyration (rx) | 3.51 cm | 1.381 in |
| Radius of gyration (ry) | 3.51 cm | 1.381 in |
Beam Calculator— CHS 121x25
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 121x25
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
9.10 mm
L/660
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
