Steel Section Catalog
ISLB 300
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 300 steel profile weighs 37.7 kg/m (25.33 lb/ft), has a depth of 300 mm (11.81 in), flange width 150 mm (5.91 in). Cross-sectional area: 4,704 mm². Moment of inertia Ix = 7,197.17 cm⁴, Iy = 529.45 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 300 mm | 11.81 in |
| Width (b) | 150 mm | 5.91 in |
| Web thickness (tw) | 6.7 mm | 0.26 in |
| Flange thickness (tf) | 9.4 mm | 0.37 in |
| Fillet radius (r) | 15 mm | 0.59 in |
| Weight | 37.7 kg/m | 25.33 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 4,704 mm² | 7.291 in² |
| Moment of inertia (Ix) | 7,197.17 cm⁴ | 172.91 in⁴ |
| Moment of inertia (Iy) | 529.45 cm⁴ | 12.72 in⁴ |
| Elastic section modulus (Sx) | 479.81 cm³ | 29.280 in³ |
| Elastic section modulus (Sy) | 70.59 cm³ | 4.308 in³ |
| Plastic section modulus (Zx) | 542.19 cm³ | 33.087 in³ |
| Plastic section modulus (Zy) | 108.91 cm³ | 6.646 in³ |
| Radius of gyration (rx) | 12.37 cm | 4.870 in |
| Radius of gyration (ry) | 3.35 cm | 1.319 in |
Beam Calculator— ISLB 300
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISLB 300
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
1.17 mm
L/5118
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
