CHS 89x18 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 89x18 steel profile weighs 31.5 kg/m (21.18 lb/ft). Cross-sectional area: 4,014.955 mm². Moment of inertia Ix = 269.253 cm⁴, Iy = 269.253 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 18 mm | 0.71 in |
| Diameter (d) | 89 mm | 3.50 in |
| Weight | 31.5 kg/m | 21.18 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 4,014.96 mm² | 6.223 in² |
| Moment of inertia (Ix) | 269.25 cm⁴ | 6.47 in⁴ |
| Moment of inertia (Iy) | 269.25 cm⁴ | 6.47 in⁴ |
| Elastic section modulus (Sx) | 60.51 cm³ | 3.692 in³ |
| Elastic section modulus (Sy) | 60.51 cm³ | 3.692 in³ |
| Plastic section modulus (Zx) | 92.68 cm³ | 5.656 in³ |
| Plastic section modulus (Zy) | 92.68 cm³ | 5.656 in³ |
| Radius of gyration (rx) | 2.59 cm | 1.020 in |
| Radius of gyration (ry) | 2.59 cm | 1.020 in |
Beam Calculator— CHS 89x18
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 89x18
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
31.34 mm
L/191
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
