Steel Section Catalog
CHS 21.3x2.3
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 21.3x2.3 steel profile weighs 1.1 kg/m (0.72 lb/ft). Cross-sectional area: 137.3 mm². Moment of inertia Ix = 0.63 cm⁴, Iy = 0.63 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 2.3 mm ≈ 13 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 2.3 mm | 0.09 in |
| Diameter (d) | 21.3 mm | 0.84 in |
| Weight | 1.1 kg/m | 0.72 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 137.3 mm² | 0.213 in² |
| Moment of inertia (Ix) | 0.63 cm⁴ | 0.02 in⁴ |
| Moment of inertia (Iy) | 0.63 cm⁴ | 0.02 in⁴ |
| Elastic section modulus (Sx) | 0.59 cm³ | 0.036 in³ |
| Elastic section modulus (Sy) | 0.59 cm³ | 0.036 in³ |
| Plastic section modulus (Zx) | 0.83 cm³ | 0.051 in³ |
| Plastic section modulus (Zy) | 0.83 cm³ | 0.051 in³ |
| Radius of gyration (rx) | 0.68 cm | 0.268 in |
| Radius of gyration (ry) | 0.68 cm | 0.268 in |
Beam Calculator— CHS 21.3x2.3
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mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 21.3x2.3
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
13392.86 mm
L/0
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
