Steel Section Catalog
CHS 168.3x6.3
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 168.3x6.3 steel profile weighs 25.2 kg/m (16.93 lb/ft). Cross-sectional area: 3,206.3 mm². Moment of inertia Ix = 1,053.42 cm⁴, Iy = 1,053.42 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 6.3 mm ≈ 3 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 6.3 mm | 0.25 in |
| Diameter (d) | 168.3 mm | 6.63 in |
| Weight | 25.2 kg/m | 16.93 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 3,206.3 mm² | 4.970 in² |
| Moment of inertia (Ix) | 1,053.42 cm⁴ | 25.31 in⁴ |
| Moment of inertia (Iy) | 1,053.42 cm⁴ | 25.31 in⁴ |
| Elastic section modulus (Sx) | 125.18 cm³ | 7.639 in³ |
| Elastic section modulus (Sy) | 125.18 cm³ | 7.639 in³ |
| Plastic section modulus (Zx) | 165.42 cm³ | 10.095 in³ |
| Plastic section modulus (Zy) | 165.42 cm³ | 10.095 in³ |
| Radius of gyration (rx) | 5.73 cm | 2.256 in |
| Radius of gyration (ry) | 5.73 cm | 2.256 in |
Beam Calculator— CHS 168.3x6.3
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mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 168.3x6.3
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
8.01 mm
L/749
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
