Steel Beam Sizes / AISC / W-Shapes / W40 / W40x431
W40x431 Dimensions, Weight and Section Properties
AISC Wide flange · v16.0
W40x431: 41.3 in depth, 16.2 in flange width, 431 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
W40x431 dimensions
Not to scale. Dimensions shown for reference.
Section properties
Symbols match the steel section finder. Imperial and metric values are shown side by side.
| Property | Imperial | Metric |
|---|---|---|
| Weight | 431.00 lb/ft | 642.00 kg/m |
| Depth, d | 41.30 in | 1,050.00 mm |
| Flange width, bf | 16.20 in | 411.00 mm |
| tw | 1.340 in | 34.000 mm |
| tf | 2.360 in | 59.900 mm |
| Area | 127.00 in² | 81,900.00 mm² |
| Ix | 34,800.00 in⁴ | 14,500,000,000 mm⁴ |
| Iy | 1,690.00 in⁴ | 703,000,000 mm⁴ |
| Sx | 1,690.00 in³ | 27,700,000 mm³ |
| Sy | 208.00 in³ | 3,410,000 mm³ |
| Zx | 1,960.00 in³ | 32,100,000 mm³ |
| Zy | 328.00 in³ | 5,370,000 mm³ |
| rx | 16.60 in | 422.00 mm |
| ry | 3.65 in | 92.70 mm |
| J | 177.00 in⁴ | 73,700,000 mm⁴ |
| Cw | 638,000.00 in⁶ | 171,000,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus W40x431.
Lighter in W40
W40x397
- Weight
- 397.0 lb/ft (-7.9%)
- Depth
- 41.00 in (-0.7%)
- Ix
- 32,000.0 in⁴ (-8.0%)
Heavier in W40
W40x503
- Weight
- 503.0 lb/ft (+17%)
- Depth
- 42.10 in (+1.9%)
- Ix
- 41,600.0 in⁴ (+20%)
Another Iₓ option in W40
W40x392
- Weight
- 392.0 lb/ft (-9.0%)
- Depth
- 41.60 in (+0.7%)
- Ix
- 29,900.0 in⁴ (-14%)
Similar weight in W36
W36x441
- Weight
- 441.0 lb/ft (+2.3%)
- Depth
- 38.90 in (-5.8%)
- Ix
- 32,100.0 in⁴ (-7.8%)
Source: AISC Shapes Database v16.0 · Methodology