Steel Section Catalog
ISWB 550
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 ISWB 550 steel profile weighs 112.0 kg/m (75.26 lb/ft), has a depth of 550 mm (21.65 in), flange width 250 mm (9.84 in). Cross-sectional area: 14,205.4 mm². Moment of inertia Ix = 74,319.45 cm⁴, Iy = 4,588.3 cm⁴.
Cross-section (not to scale)
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth (h) | 550 mm | 21.65 in |
| Width (b) | 250 mm | 9.84 in |
| Web thickness (tw) | 10.5 mm | 0.41 in |
| Flange thickness (tf) | 17.6 mm | 0.69 in |
| Fillet radius (r) | 16 mm | 0.63 in |
| Weight | 112.0 kg/m | 75.26 lb/ft |
Section Properties
| Property | Metric | Imperial |
|---|---|---|
| Area (A) | 14,205.4 mm² | 22.018 in² |
| Moment of inertia (Ix) | 74,319.45 cm⁴ | 1785.52 in⁴ |
| Moment of inertia (Iy) | 4,588.3 cm⁴ | 110.23 in⁴ |
| Elastic section modulus (Sx) | 2,702.53 cm³ | 164.919 in³ |
| Elastic section modulus (Sy) | 367.06 cm³ | 22.399 in³ |
| Plastic section modulus (Zx) | 3,038.23 cm³ | 185.405 in³ |
| Plastic section modulus (Zy) | 564.19 cm³ | 34.429 in³ |
| Radius of gyration (rx) | 22.87 cm | 9.004 in |
| Radius of gyration (ry) | 5.68 cm | 2.236 in |
Beam Calculator— ISWB 550
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mfixed @ 0mfixed @ 6m→kN/m
Results — ISWB 550
Mmax
15.0 kN·m
Vmax
15.0 kN
δmax
0.11 mm
L/52849
R115.0 kN| 15.0 kN·mR215.0 kN| -15.0 kN·m
Standard:
