Steel Section Catalog
HSS 177.8x8.0
AISC — 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 HSS 177.8x8.0 steel profile weighs 31.1 kg/m (20.90 lb/ft). Cross-sectional area: 3,961.4 mm². Moment of inertia Ix = 1,440.52 cm⁴, Iy = 1,440.52 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Thickness (t) | 7.4 mm | 0.29 in |
| Diameter (d) | 177.8 mm | 7.00 in |
| Weight | 31.1 kg/m | 20.90 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 3,961.4 mm² | 6.140 in² |
| Moment of inertia (Ix) | 1,440.52 cm⁴ | 34.61 in⁴ |
| Moment of inertia (Iy) | 1,440.52 cm⁴ | 34.61 in⁴ |
| Elastic section modulus (Sx) | 162.04 cm³ | 9.888 in³ |
| Elastic section modulus (Sy) | 162.04 cm³ | 9.888 in³ |
| Plastic section modulus (Zx) | 215 cm³ | 13.120 in³ |
| Plastic section modulus (Zy) | 215 cm³ | 13.120 in³ |
| Radius of gyration (rx) | 6.03 cm | 2.374 in |
| Radius of gyration (ry) | 6.03 cm | 2.374 in |
Beam Calculator— HSS 177.8x8.0
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mfixed @ 0mfixed @ 6m→kN/m
Results — HSS 177.8x8.0
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
5.86 mm
L/1024
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
