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 89x7 steel profile weighs 14.2 kg/m (9.52 lb/ft). Cross-sectional area: 1,803.274 mm². Moment of inertia Ix = 152.67 cm⁴, Iy = 152.67 cm⁴.
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 7 mm | 0.28 in |
| Diameter (d) | 89 mm | 3.50 in |
| Weight | 14.2 kg/m | 9.52 lb/ft |
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,803.27 mm² | 2.795 in² |
| Moment of inertia (Ix) | 152.67 cm⁴ | 3.67 in⁴ |
| Moment of inertia (Iy) | 152.67 cm⁴ | 3.67 in⁴ |
| Elastic section modulus (Sx) | 34.31 cm³ | 2.094 in³ |
| Elastic section modulus (Sy) | 34.31 cm³ | 2.094 in³ |
| Plastic section modulus (Zx) | 47.18 cm³ | 2.879 in³ |
| Plastic section modulus (Zy) | 47.18 cm³ | 2.879 in³ |
| Radius of gyration (rx) | 2.91 cm | 1.146 in |
| Radius of gyration (ry) | 2.91 cm | 1.146 in |
15.0 kN·m
15.0 kN
55.27 mm
L/109