CHS 133x20 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 133x20 steel profile weighs 55.7 kg/m (37.45 lb/ft). Cross-sectional area: 7,099.999 mm². Moment of inertia Ix = 1,168.749 cm⁴, Iy = 1,168.749 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 20 mm | 0.79 in |
| Diameter (d) | 133 mm | 5.24 in |
| Weight | 55.7 kg/m | 37.45 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 7,100 mm² | 11.005 in² |
| Moment of inertia (Ix) | 1,168.75 cm⁴ | 28.08 in⁴ |
| Moment of inertia (Iy) | 1,168.75 cm⁴ | 28.08 in⁴ |
| Elastic section modulus (Sx) | 175.75 cm³ | 10.725 in³ |
| Elastic section modulus (Sy) | 175.75 cm³ | 10.725 in³ |
| Plastic section modulus (Zx) | 258.05 cm³ | 15.747 in³ |
| Plastic section modulus (Zy) | 258.05 cm³ | 15.747 in³ |
| Radius of gyration (rx) | 4.06 cm | 1.597 in |
| Radius of gyration (ry) | 4.06 cm | 1.597 in |
Beam Calculator— CHS 133x20
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 133x20
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
7.22 mm
L/831
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
