Steel Beam Sizes / AISC / W-Shapes / W40 / W40x431

W40x431 Steel Beam Dimensions and Properties

AISC Wide flange · v16.0

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Diagram, properties emphasis, and nearby alternatives use the selected unit system.

Units

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

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W40x431.

Browse W40 series →

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%)

Closest Iₓ 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%)
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Source: AISC Shapes Database v16.0 · Methodology