CHS 88.9x6.35 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 88.9x6.35 steel profile weighs 12.9 kg/m (8.69 lb/ft). Cross-sectional area: 1,646.799 mm². Moment of inertia Ix = 141.107 cm⁴, Iy = 141.107 cm⁴.
Cross-section (not to scale)
Gauge equivalent: 6.35 mm ≈ 3 gauge (Manufacturers Standard Gage)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 6.3 mm | 0.25 in |
| Diameter (d) | 88.9 mm | 3.50 in |
| Weight | 12.9 kg/m | 8.69 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,646.8 mm² | 2.553 in² |
| Moment of inertia (Ix) | 141.11 cm⁴ | 3.39 in⁴ |
| Moment of inertia (Iy) | 141.11 cm⁴ | 3.39 in⁴ |
| Elastic section modulus (Sx) | 31.74 cm³ | 1.937 in³ |
| Elastic section modulus (Sy) | 31.74 cm³ | 1.937 in³ |
| Plastic section modulus (Zx) | 43.36 cm³ | 2.646 in³ |
| Plastic section modulus (Zy) | 43.36 cm³ | 2.646 in³ |
| Radius of gyration (rx) | 2.93 cm | 1.152 in |
| Radius of gyration (ry) | 2.93 cm | 1.152 in |
Beam Calculator— CHS 88.9x6.35
drag to orbit
mfixed @ 0mfixed @ 6m→kN/m
Results — CHS 88.9x6.35
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
59.80 mm
L/100
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
