Indian Standard Medium Weight Channel per IS 808 : 1989 — depth 250mm, flange width 80mm, web thickness 7.1mm, flange thickness 14.1mm, weight 30.4 kg/m. Centroid offset Cy = 22.9 mm from back of web.
| Property | About X-X Axis | About Y-Y Axis |
|---|---|---|
| Moment of Inertia (I) | 38160000 mm4 | 2110000 mm4 |
| Elastic Section Modulus (Z) | 305300 mm3 | 36900 mm3 |
| Plastic Section Modulus (Zp) | 360700 mm3 | 64100 mm3 |
| Radius of Gyration (r) | 99.3 mm | 23.4 mm |
| Centroid from Web (Cy) | 22.9 mm | |
| Torsional Constant (It) | 198000 mm4 | |
| Grade | Yield (MPa) | UTS (MPa) | Elong. | Application |
|---|---|---|---|---|
| E250 (Fe 410W) | 250 | 410 | 23% | General construction |
| E275 (Fe 440) | 275 | 440 | 22% | Commercial buildings |
| E300 | 300 | 440 | 22% | Industrial structures |
| E350 (Fe 490) | 350 | 490 | 22% | Heavy industrial, bridges |
| E410 (Fe 540) | 410 | 540 | 20% | Heavy structural, offshore |
| E450 (Fe 570) | 450 | 570 | 20% | Bridges, towers |