Steel Section Catalog
CHS 168.3x5
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.
The CHS 168.3x5 steel profile weighs 20.1 kg/m (13.51 lb/ft). Cross-sectional area: 2,565.1 mm². Moment of inertia Ix = 855.85 cm⁴, Iy = 855.85 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 5 mm ≈ 6 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 5 mm | 0.20 in |
| Diameter (d) | 168.3 mm | 6.63 in |
| Weight | 20.1 kg/m | 13.51 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 2,565.1 mm² | 3.976 in² |
| Moment of inertia (Ix) | 855.85 cm⁴ | 20.56 in⁴ |
| Moment of inertia (Iy) | 855.85 cm⁴ | 20.56 in⁴ |
| Elastic section modulus (Sx) | 101.7 cm³ | 6.206 in³ |
| Elastic section modulus (Sy) | 101.7 cm³ | 6.206 in³ |
| Plastic section modulus (Zx) | 133.38 cm³ | 8.139 in³ |
| Plastic section modulus (Zy) | 133.38 cm³ | 8.139 in³ |
| Radius of gyration (rx) | 5.78 cm | 2.276 in |
| Radius of gyration (ry) | 5.78 cm | 2.276 in |
Beam Calculator— CHS 168.3x5
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mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 168.3x5
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
9.86 mm
L/609
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
