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 219x18 steel profile weighs 89.2 kg/m (59.96 lb/ft). Cross-sectional area: 11,366.282 mm². Moment of inertia Ix = 5,786.148 cm⁴, Iy = 5,786.148 cm⁴.
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 18 mm | 0.71 in |
| Diameter (d) | 219 mm | 8.62 in |
| Weight | 89.2 kg/m | 59.96 lb/ft |
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 11,366.28 mm² | 17.618 in² |
| Moment of inertia (Ix) | 5,786.15 cm⁴ | 139.01 in⁴ |
| Moment of inertia (Iy) | 5,786.15 cm⁴ | 139.01 in⁴ |
| Elastic section modulus (Sx) | 528.42 cm³ | 32.246 in³ |
| Elastic section modulus (Sy) | 528.42 cm³ | 32.246 in³ |
| Plastic section modulus (Zx) | 729.16 cm³ | 44.496 in³ |
| Plastic section modulus (Zy) | 729.16 cm³ | 44.496 in³ |
| Radius of gyration (rx) | 7.13 cm | 2.809 in |
| Radius of gyration (ry) | 7.13 cm | 2.809 in |
15.0 kN·m
15.0 kN
1.46 mm
L/4115