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.
The CHS 89x4 steel profile weighs 8.4 kg/m (5.63 lb/ft). Cross-sectional area: 1,068.142 mm². Moment of inertia Ix = 96.68 cm⁴, Iy = 96.68 cm⁴.
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 4 mm | 0.16 in |
| Diameter (d) | 89 mm | 3.50 in |
| Weight | 8.4 kg/m | 5.63 lb/ft |
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,068.14 mm² | 1.656 in² |
| Moment of inertia (Ix) | 96.68 cm⁴ | 2.32 in⁴ |
| Moment of inertia (Iy) | 96.68 cm⁴ | 2.32 in⁴ |
| Elastic section modulus (Sx) | 21.73 cm³ | 1.326 in³ |
| Elastic section modulus (Sy) | 21.73 cm³ | 1.326 in³ |
| Plastic section modulus (Zx) | 28.92 cm³ | 1.765 in³ |
| Plastic section modulus (Zy) | 28.92 cm³ | 1.765 in³ |
| Radius of gyration (rx) | 3.01 cm | 1.184 in |
| Radius of gyration (ry) | 3.01 cm | 1.184 in |
15.0 kN·m
15.0 kN
87.27 mm
L/69