CHS 48.3x3.81 CISC · Weight & Dimensions
CISC, cold-formed sections · 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 48.3x3.81 steel profile weighs 4.2 kg/m (2.81 lb/ft). Cross-sectional area: 532.522 mm². Moment of inertia Ix = 13.272 cm⁴, Iy = 13.272 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 3.81 mm ≈ 9 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 3.8 mm | 0.15 in |
| Diameter (d) | 48.3 mm | 1.90 in |
| Weight | 4.2 kg/m | 2.81 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 532.52 mm² | 0.825 in² |
| Moment of inertia (Ix) | 13.27 cm⁴ | 0.32 in⁴ |
| Moment of inertia (Iy) | 13.27 cm⁴ | 0.32 in⁴ |
| Elastic section modulus (Sx) | 5.5 cm³ | 0.335 in³ |
| Elastic section modulus (Sy) | 5.5 cm³ | 0.335 in³ |
| Plastic section modulus (Zx) | 7.56 cm³ | 0.461 in³ |
| Plastic section modulus (Zy) | 7.56 cm³ | 0.461 in³ |
| Radius of gyration (rx) | 1.58 cm | 0.622 in |
| Radius of gyration (ry) | 1.58 cm | 0.622 in |
Beam Calculator— CHS 48.3x3.81
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 48.3x3.81
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
635.72 mm
L/9
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
