Steel Section Catalog
ISMB 350
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 350 (México) · Doble T ISMB 350 (Argentina / LATAM) · UB 350 (UK / Australia)
The ISMB 350 steel profile weighs 52.4 kg/m (35.21 lb/ft), has a depth of 350 mm (13.78 in), flange width 140 mm (5.51 in). Cross-sectional area: 6,581 mm². Moment of inertia Ix = 13,460.37 cm⁴, Iy = 650.84 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 350 mm | 13.78 in |
| Width (b) | 140 mm | 5.51 in |
| Web thickness (tw) | 8.1 mm | 0.32 in |
| Flange thickness (tf) | 14.2 mm | 0.56 in |
| Fillet radius (r) | 14 mm | 0.55 in |
| Weight | 52.4 kg/m | 35.21 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 6,581 mm² | 10.201 in² |
| Moment of inertia (Ix) | 13,460.37 cm⁴ | 323.39 in⁴ |
| Moment of inertia (Iy) | 650.84 cm⁴ | 15.64 in⁴ |
| Elastic section modulus (Sx) | 769.16 cm³ | 46.937 in³ |
| Elastic section modulus (Sy) | 92.98 cm³ | 5.674 in³ |
| Plastic section modulus (Zx) | 877.01 cm³ | 53.519 in³ |
| Plastic section modulus (Zy) | 144.44 cm³ | 8.814 in³ |
| Radius of gyration (rx) | 14.3 cm | 5.630 in |
| Radius of gyration (ry) | 3.14 cm | 1.236 in |
Beam Calculator— ISMB 350
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISMB 350
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.63 mm
L/9572
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
