CHS 102x18 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 102x18 steel profile weighs 37.3 kg/m (25.06 lb/ft). Cross-sectional area: 4,750.088 mm². Moment of inertia Ix = 438.196 cm⁴, Iy = 438.196 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 18 mm | 0.71 in |
| Diameter (d) | 102 mm | 4.02 in |
| Weight | 37.3 kg/m | 25.06 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 4,750.09 mm² | 7.363 in² |
| Moment of inertia (Ix) | 438.2 cm⁴ | 10.53 in⁴ |
| Moment of inertia (Iy) | 438.2 cm⁴ | 10.53 in⁴ |
| Elastic section modulus (Sx) | 85.92 cm³ | 5.243 in³ |
| Elastic section modulus (Sy) | 85.92 cm³ | 5.243 in³ |
| Plastic section modulus (Zx) | 128.95 cm³ | 7.869 in³ |
| Plastic section modulus (Zy) | 128.95 cm³ | 7.869 in³ |
| Radius of gyration (rx) | 3.04 cm | 1.196 in |
| Radius of gyration (ry) | 3.04 cm | 1.196 in |
Beam Calculator— CHS 102x18
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 102x18
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
19.26 mm
L/312
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
