CHS 180x18 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 180x18 steel profile weighs 71.9 kg/m (48.32 lb/ft). Cross-sectional area: 9,160.884 mm². Moment of inertia Ix = 3,042.33 cm⁴, Iy = 3,042.33 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 18 mm | 0.71 in |
| Diameter (d) | 180 mm | 7.09 in |
| Weight | 71.9 kg/m | 48.32 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 9,160.88 mm² | 14.199 in² |
| Moment of inertia (Ix) | 3,042.33 cm⁴ | 73.09 in⁴ |
| Moment of inertia (Iy) | 3,042.33 cm⁴ | 73.09 in⁴ |
| Elastic section modulus (Sx) | 338.04 cm³ | 20.628 in³ |
| Elastic section modulus (Sy) | 338.04 cm³ | 20.628 in³ |
| Plastic section modulus (Zx) | 474.34 cm³ | 28.946 in³ |
| Plastic section modulus (Zy) | 474.34 cm³ | 28.946 in³ |
| Radius of gyration (rx) | 5.76 cm | 2.269 in |
| Radius of gyration (ry) | 5.76 cm | 2.269 in |
Beam Calculator— CHS 180x18
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 180x18
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
2.77 mm
L/2163
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
