Steel Section Catalog
ISMB 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.
Also known as: ISMB 450 (México) · Doble T ISMB 450 (Argentina / LATAM) · UB 450 (UK / Australia)
The ISMB 450 steel profile weighs 72.4 kg/m (48.65 lb/ft), has a depth of 450 mm (17.72 in), flange width 150 mm (5.91 in). Cross-sectional area: 9,122.9 mm². Moment of inertia Ix = 30,042.15 cm⁴, Iy = 981.62 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 450 mm | 17.72 in |
| Width (b) | 150 mm | 5.91 in |
| Web thickness (tw) | 9.4 mm | 0.37 in |
| Flange thickness (tf) | 17.4 mm | 0.69 in |
| Fillet radius (r) | 15 mm | 0.59 in |
| Weight | 72.4 kg/m | 48.65 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 9,122.9 mm² | 14.140 in² |
| Moment of inertia (Ix) | 30,042.15 cm⁴ | 721.76 in⁴ |
| Moment of inertia (Iy) | 981.62 cm⁴ | 23.58 in⁴ |
| Elastic section modulus (Sx) | 1,335.21 cm³ | 81.480 in³ |
| Elastic section modulus (Sy) | 130.88 cm³ | 7.987 in³ |
| Plastic section modulus (Zx) | 1,534.2 cm³ | 93.623 in³ |
| Plastic section modulus (Zy) | 204.92 cm³ | 12.505 in³ |
| Radius of gyration (rx) | 18.15 cm | 7.146 in |
| Radius of gyration (ry) | 3.28 cm | 1.291 in |
Beam Calculator— ISMB 450
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISMB 450
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.28 mm
L/21363
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
