Steel Section Catalog
ISHB 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.
Also known as: ISHB 400 (México) · Doble T ISHB 400 (Argentina / LATAM) · UB 400 (UK / Australia)
The ISHB 400 steel profile weighs 77.4 kg/m (52.01 lb/ft), has a depth of 400 mm (15.75 in), flange width 250 mm (9.84 in). Cross-sectional area: 9,758.9 mm². Moment of inertia Ix = 27,807.48 cm⁴, Iy = 3,309.64 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 400 mm | 15.75 in |
| Width (b) | 250 mm | 9.84 in |
| Web thickness (tw) | 9.1 mm | 0.36 in |
| Flange thickness (tf) | 12.7 mm | 0.50 in |
| Fillet radius (r) | 14 mm | 0.55 in |
| Weight | 77.4 kg/m | 52.01 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 9,758.9 mm² | 15.126 in² |
| Moment of inertia (Ix) | 27,807.48 cm⁴ | 668.07 in⁴ |
| Moment of inertia (Iy) | 3,309.64 cm⁴ | 79.51 in⁴ |
| Elastic section modulus (Sx) | 1,390.37 cm³ | 84.846 in³ |
| Elastic section modulus (Sy) | 264.77 cm³ | 16.157 in³ |
| Plastic section modulus (Zx) | 1,548.92 cm³ | 94.521 in³ |
| Plastic section modulus (Zy) | 404.63 cm³ | 24.692 in³ |
| Radius of gyration (rx) | 16.88 cm | 6.646 in |
| Radius of gyration (ry) | 5.82 cm | 2.291 in |
Beam Calculator— ISHB 400
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISHB 400
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.30 mm
L/19774
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
