Steel Section Catalog
ISLB 450
IS — Wide Flange (I-beam)
Wide flange beams (W shapes / I-beams) are the most common structural steel profile used in building construction. They are used for beams, columns, and girders in steel-framed buildings and bridges. Designed per AISC 360, Eurocode 3, and NBR 8800.
The ISLB 450 steel profile weighs 65.3 kg/m (43.88 lb/ft), has a depth of 450 mm (17.72 in), flange width 170 mm (6.69 in). Cross-sectional area: 8,195.5 mm². Moment of inertia Ix = 27,150.32 cm⁴, Iy = 1,099.48 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 450 mm | 17.72 in |
| Width (b) | 170 mm | 6.69 in |
| Web thickness (tw) | 8.6 mm | 0.34 in |
| Flange thickness (tf) | 13.4 mm | 0.53 in |
| Fillet radius (r) | 16 mm | 0.63 in |
| Weight | 65.3 kg/m | 43.88 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 8,195.5 mm² | 12.703 in² |
| Moment of inertia (Ix) | 27,150.32 cm⁴ | 652.29 in⁴ |
| Moment of inertia (Iy) | 1,099.48 cm⁴ | 26.42 in⁴ |
| Elastic section modulus (Sx) | 1,206.68 cm³ | 73.636 in³ |
| Elastic section modulus (Sy) | 129.35 cm³ | 7.893 in³ |
| Plastic section modulus (Zx) | 1,379.64 cm³ | 84.191 in³ |
| Plastic section modulus (Zy) | 201.45 cm³ | 12.293 in³ |
| Radius of gyration (rx) | 18.2 cm | 7.165 in |
| Radius of gyration (ry) | 3.66 cm | 1.441 in |
Beam Calculator— ISLB 450
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISLB 450
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.31 mm
L/19307
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
