Steel Section Catalog
ISLB 125
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 ISLB 125 steel profile weighs 11.9 kg/m (8.00 lb/ft), has a depth of 125 mm (4.92 in), flange width 75 mm (2.95 in). Cross-sectional area: 1,467.8 mm². Moment of inertia Ix = 394.14 cm⁴, Iy = 45.78 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 125 mm | 4.92 in |
| Width (b) | 75 mm | 2.95 in |
| Web thickness (tw) | 4.4 mm | 0.17 in |
| Flange thickness (tf) | 6.5 mm | 0.26 in |
| Fillet radius (r) | 8 mm | 0.31 in |
| Weight | 11.9 kg/m | 8.00 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 1,467.8 mm² | 2.275 in² |
| Moment of inertia (Ix) | 394.14 cm⁴ | 9.47 in⁴ |
| Moment of inertia (Iy) | 45.78 cm⁴ | 1.10 in⁴ |
| Elastic section modulus (Sx) | 63.06 cm³ | 3.848 in³ |
| Elastic section modulus (Sy) | 12.21 cm³ | 0.745 in³ |
| Plastic section modulus (Zx) | 71.57 cm³ | 4.367 in³ |
| Plastic section modulus (Zy) | 18.82 cm³ | 1.148 in³ |
| Radius of gyration (rx) | 5.18 cm | 2.039 in |
| Radius of gyration (ry) | 1.77 cm | 0.697 in |
Beam Calculator— ISLB 125
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISLB 125
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
21.41 mm
L/280
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
