Steel Section Catalog
HSS 305x203x8.0
AISC — Rectangular Hollow Section
Rectangular Hollow Sections (RHS) are tubular profiles with excellent torsional resistance and aesthetic appeal. Used for columns, trusses, and exposed structural elements.
The HSS 305x203x8.0 steel profile weighs 55.0 kg/m (36.96 lb/ft), has a depth of 304.8 mm (12.00 in), flange width 203.2 mm (8.00 in). Cross-sectional area: 7,299.4 mm². Moment of inertia Ix = 9,659.13 cm⁴, Iy = 5,150.38 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 304.8 mm | 12.00 in |
| Width (b) | 203.2 mm | 8.00 in |
| Thickness (t) | 7.4 mm | 0.29 in |
| Fillet radius (r) | 14.8 mm | 0.58 in |
| Weight | 55.0 kg/m | 36.96 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 7,299.4 mm² | 11.314 in² |
| Moment of inertia (Ix) | 9,659.13 cm⁴ | 232.06 in⁴ |
| Moment of inertia (Iy) | 5,150.38 cm⁴ | 123.74 in⁴ |
| Elastic section modulus (Sx) | 633.8 cm³ | 38.677 in³ |
| Elastic section modulus (Sy) | 506.93 cm³ | 30.935 in³ |
| Plastic section modulus (Zx) | 758.36 cm³ | 46.278 in³ |
| Plastic section modulus (Zy) | 572.96 cm³ | 34.964 in³ |
| Radius of gyration (rx) | 11.5 cm | 4.528 in |
| Radius of gyration (ry) | 8.4 cm | 3.307 in |
Beam Calculator— HSS 305x203x8.0
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mfixed @ 0mfixed @ 6m→kN/m
Results — HSS 305x203x8.0
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.87 mm
L/6869
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
