Steel Section Catalog
ISLB 300A
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 300A steel profile weighs 41.5 kg/m (27.89 lb/ft), has a depth of 300 mm (11.81 in), flange width 140 mm (5.51 in). Cross-sectional area: 5,185.6 mm². Moment of inertia Ix = 7,994.55 cm⁴, Iy = 531.3 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 300 mm | 11.81 in |
| Width (b) | 140 mm | 5.51 in |
| Web thickness (tw) | 7 mm | 0.28 in |
| Flange thickness (tf) | 11.6 mm | 0.46 in |
| Fillet radius (r) | 15 mm | 0.59 in |
| Weight | 41.5 kg/m | 27.89 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 5,185.6 mm² | 8.038 in² |
| Moment of inertia (Ix) | 7,994.55 cm⁴ | 192.07 in⁴ |
| Moment of inertia (Iy) | 531.3 cm⁴ | 12.76 in⁴ |
| Elastic section modulus (Sx) | 532.97 cm³ | 32.524 in³ |
| Elastic section modulus (Sy) | 75.9 cm³ | 4.632 in³ |
| Plastic section modulus (Zx) | 602.44 cm³ | 36.763 in³ |
| Plastic section modulus (Zy) | 117.07 cm³ | 7.144 in³ |
| Radius of gyration (rx) | 12.42 cm | 4.890 in |
| Radius of gyration (ry) | 3.2 cm | 1.260 in |
Beam Calculator— ISLB 300A
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISLB 300A
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
1.06 mm
L/5685
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
