Steel Section Catalog
ISWB 400
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 ISWB 400 steel profile weighs 66.7 kg/m (44.82 lb/ft), has a depth of 400 mm (15.75 in), flange width 200 mm (7.87 in). Cross-sectional area: 8,416.4 mm². Moment of inertia Ix = 23,226.44 cm⁴, Iy = 1,735.32 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 400 mm | 15.75 in |
| Width (b) | 200 mm | 7.87 in |
| Web thickness (tw) | 8.6 mm | 0.34 in |
| Flange thickness (tf) | 13 mm | 0.51 in |
| Fillet radius (r) | 13 mm | 0.51 in |
| Weight | 66.7 kg/m | 44.82 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 8,416.4 mm² | 13.045 in² |
| Moment of inertia (Ix) | 23,226.44 cm⁴ | 558.02 in⁴ |
| Moment of inertia (Iy) | 1,735.32 cm⁴ | 41.69 in⁴ |
| Elastic section modulus (Sx) | 1,161.32 cm³ | 70.868 in³ |
| Elastic section modulus (Sy) | 173.53 cm³ | 10.589 in³ |
| Plastic section modulus (Zx) | 1,306.93 cm³ | 79.754 in³ |
| Plastic section modulus (Zy) | 266.92 cm³ | 16.289 in³ |
| Radius of gyration (rx) | 16.61 cm | 6.539 in |
| Radius of gyration (ry) | 4.54 cm | 1.787 in |
Beam Calculator— ISWB 400
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISWB 400
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.36 mm
L/16517
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
