CHS 121x16 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 121x16 steel profile weighs 41.4 kg/m (27.84 lb/ft). Cross-sectional area: 5,277.876 mm². Moment of inertia Ix = 744.246 cm⁴, Iy = 744.246 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 16 mm | 0.63 in |
| Diameter (d) | 121 mm | 4.76 in |
| Weight | 41.4 kg/m | 27.84 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 5,277.88 mm² | 8.181 in² |
| Moment of inertia (Ix) | 744.25 cm⁴ | 17.88 in⁴ |
| Moment of inertia (Iy) | 744.25 cm⁴ | 17.88 in⁴ |
| Elastic section modulus (Sx) | 123.02 cm³ | 7.507 in³ |
| Elastic section modulus (Sy) | 123.02 cm³ | 7.507 in³ |
| Plastic section modulus (Zx) | 177.77 cm³ | 10.848 in³ |
| Plastic section modulus (Zy) | 177.77 cm³ | 10.848 in³ |
| Radius of gyration (rx) | 3.76 cm | 1.478 in |
| Radius of gyration (ry) | 3.76 cm | 1.478 in |
Beam Calculator— CHS 121x16
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 121x16
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
11.34 mm
L/529
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
