CHS 121x6 GOST · Weight & Dimensions
GOST, 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 121x6 steel profile weighs 17.0 kg/m (11.44 lb/ft). Cross-sectional area: 2,167.699 mm². Moment of inertia Ix = 359.323 cm⁴, Iy = 359.323 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 6 mm ≈ 4 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 6 mm | 0.24 in |
| Diameter (d) | 121 mm | 4.76 in |
| Weight | 17.0 kg/m | 11.44 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 2,167.7 mm² | 3.360 in² |
| Moment of inertia (Ix) | 359.32 cm⁴ | 8.63 in⁴ |
| Moment of inertia (Iy) | 359.32 cm⁴ | 8.63 in⁴ |
| Elastic section modulus (Sx) | 59.39 cm³ | 3.624 in³ |
| Elastic section modulus (Sy) | 59.39 cm³ | 3.624 in³ |
| Plastic section modulus (Zx) | 79.42 cm³ | 4.847 in³ |
| Plastic section modulus (Zy) | 79.42 cm³ | 4.847 in³ |
| Radius of gyration (rx) | 4.07 cm | 1.603 in |
| Radius of gyration (ry) | 4.07 cm | 1.603 in |
Beam Calculator— CHS 121x6
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 121x6
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
23.48 mm
L/256
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
