CHS 88.9x5.5 Tecnometal · Weight & Dimensions
Tecnometal, cold-formed sections (Brazil) · 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 88.9x5.5 steel profile weighs 11.3 kg/m (7.60 lb/ft). Cross-sectional area: 1,441.049 mm². Moment of inertia Ix = 125.836 cm⁴, Iy = 125.836 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 5.5 mm ≈ 4 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 5.5 mm | 0.22 in |
| Diameter (d) | 88.9 mm | 3.50 in |
| Weight | 11.3 kg/m | 7.60 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,441.05 mm² | 2.234 in² |
| Moment of inertia (Ix) | 125.84 cm⁴ | 3.02 in⁴ |
| Moment of inertia (Iy) | 125.84 cm⁴ | 3.02 in⁴ |
| Elastic section modulus (Sx) | 28.31 cm³ | 1.728 in³ |
| Elastic section modulus (Sy) | 28.31 cm³ | 1.728 in³ |
| Plastic section modulus (Zx) | 38.31 cm³ | 2.338 in³ |
| Plastic section modulus (Zy) | 38.31 cm³ | 2.338 in³ |
| Radius of gyration (rx) | 2.96 cm | 1.163 in |
| Radius of gyration (ry) | 2.96 cm | 1.163 in |
Beam Calculator— CHS 88.9x5.5
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 88.9x5.5
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
67.05 mm
L/89
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
