Steel Beam Sizes / CISC / W-Shapes / W920×491

W920×491 Steel Beam Dimensions and Properties

CISC Wide flange · v12.1

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

Units

Section diagram

W920×491 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 330.00 lb/ft 491.00 kg/m
Depth, d 37.68 in 957.00 mm
Flange width, bf 16.61 in 422.00 mm
tw 1.020 in 25.900 mm
tf 1.850 in 47.000 mm
Area 96.57 in² 62,300.00 mm²
Ix 23,208.24 in⁴ 9,660,000,000 mm⁴
Iy 1,417.48 in⁴ 590,000,000 mm⁴
Sx 1,232.68 in³ 20,200,000 mm³
Sy 170.87 in³ 2,800,000 mm³
Zx 1,403.55 in³ 23,000,000 mm³
Zy 264.84 in³ 4,340,000 mm³
rx 15.51 in 394.00 mm
ry 3.83 in 97.30 mm
J 82.65 in⁴ 34,400,000 mm⁴
Cw 454,315.48 in⁶ 122,000,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W920×491.

Lighter in W920

W920×474

Weight
474.0 kg/m (-3.6%)
Depth
971.0 mm (+1.5%)
Ix
8,860,000,000 mm⁴ (-8.3%)

Heavier in W920

W920×521

Weight
521.0 kg/m (+6.1%)
Depth
981.0 mm (+2.5%)
Ix
9,820,000,000 mm⁴ (+1.7%)

Closest Iₓ in W920

W920×449

Weight
449.0 kg/m (-8.5%)
Depth
948.0 mm (-0.9%)
Ix
8,750,000,000 mm⁴ (-9.4%)

Similar weight in W1000

W1000×494

Weight
494.0 kg/m (+0.3%)
Depth
1,036.0 mm (+8.3%)
Ix
10,300,000,000 mm⁴ (+6.6%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Not produced in Canada. · Methodology