Steel Section Catalog
CHS 88.9x3.2 · Weight & Dimensions
EN — 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 88.9x3.2 steel profile weighs 6.8 kg/m (4.54 lb/ft). Cross-sectional area: 861.6 mm². Moment of inertia Ix = 79.21 cm⁴, Iy = 79.21 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 3.2 mm ≈ 10 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 3.2 mm | 0.13 in |
| Diameter (d) | 88.9 mm | 3.50 in |
| Weight | 6.8 kg/m | 4.54 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 861.6 mm² | 1.335 in² |
| Moment of inertia (Ix) | 79.21 cm⁴ | 1.90 in⁴ |
| Moment of inertia (Iy) | 79.21 cm⁴ | 1.90 in⁴ |
| Elastic section modulus (Sx) | 17.82 cm³ | 1.087 in³ |
| Elastic section modulus (Sy) | 17.82 cm³ | 1.087 in³ |
| Plastic section modulus (Zx) | 23.51 cm³ | 1.435 in³ |
| Plastic section modulus (Zy) | 23.51 cm³ | 1.435 in³ |
| Radius of gyration (rx) | 3.03 cm | 1.193 in |
| Radius of gyration (ry) | 3.03 cm | 1.193 in |
Beam Calculator— CHS 88.9x3.2
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 88.9x3.2
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
106.52 mm
L/56
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
