Steel Section Catalog
ISHB 400A
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 400A (México) · Doble T ISHB 400A (Argentina / LATAM) · UB 400 (UK / Australia)
The ISHB 400A steel profile weighs 82.2 kg/m (55.24 lb/ft), has a depth of 400 mm (15.75 in), flange width 250 mm (9.84 in). Cross-sectional area: 10,320.8 mm². Moment of inertia Ix = 28,464.55 cm⁴, Iy = 3,311.01 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) | 10.6 mm | 0.42 in |
| Flange thickness (tf) | 12.7 mm | 0.50 in |
| Fillet radius (r) | 14 mm | 0.55 in |
| Weight | 82.2 kg/m | 55.24 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 10,320.8 mm² | 15.997 in² |
| Moment of inertia (Ix) | 28,464.55 cm⁴ | 683.86 in⁴ |
| Moment of inertia (Iy) | 3,311.01 cm⁴ | 79.55 in⁴ |
| Elastic section modulus (Sx) | 1,423.23 cm³ | 86.851 in³ |
| Elastic section modulus (Sy) | 264.88 cm³ | 16.164 in³ |
| Plastic section modulus (Zx) | 1,601.54 cm³ | 97.732 in³ |
| Plastic section modulus (Zy) | 407.4 cm³ | 24.861 in³ |
| Radius of gyration (rx) | 16.61 cm | 6.539 in |
| Radius of gyration (ry) | 5.66 cm | 2.228 in |
Beam Calculator— ISHB 400A
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISHB 400A
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.30 mm
L/20241
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
