Steel Section Catalog
HSS 323.9x6.4
AISC — 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 HSS 323.9x6.4 steel profile weighs 46.2 kg/m (31.05 lb/ft). Cross-sectional area: 5,894.3 mm². Moment of inertia Ix = 7,453.2 cm⁴, Iy = 7,453.2 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 5.9 mm ≈ 4 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 5.9 mm | 0.23 in |
| Diameter (d) | 323.9 mm | 12.75 in |
| Weight | 46.2 kg/m | 31.05 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 5,894.3 mm² | 9.136 in² |
| Moment of inertia (Ix) | 7,453.2 cm⁴ | 179.06 in⁴ |
| Moment of inertia (Iy) | 7,453.2 cm⁴ | 179.06 in⁴ |
| Elastic section modulus (Sx) | 460.22 cm³ | 28.084 in³ |
| Elastic section modulus (Sy) | 460.22 cm³ | 28.084 in³ |
| Plastic section modulus (Zx) | 596.7 cm³ | 36.413 in³ |
| Plastic section modulus (Zy) | 596.7 cm³ | 36.413 in³ |
| Radius of gyration (rx) | 11.24 cm | 4.425 in |
| Radius of gyration (ry) | 11.24 cm | 4.425 in |
Beam Calculator— HSS 323.9x6.4
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mfixed @ 0mfixed @ 6m→kN/m
Results — HSS 323.9x6.4
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
1.13 mm
L/5300
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
