Steel Beam Sizes / CISC / W-Shapes / W310×74

W310×74 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

W310×74 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 50.00 lb/ft 74.00 kg/m
Depth, d 12.20 in 310.00 mm
Flange width, bf 8.07 in 205.00 mm
tw 0.370 in 9.400 mm
tf 0.642 in 16.300 mm
Area 14.62 in² 9,430.00 mm²
Ix 394.01 in⁴ 164,000,000 mm⁴
Iy 56.22 in⁴ 23,400,000 mm⁴
Sx 64.69 in³ 1,060,000 mm³
Sy 13.97 in³ 229,000.00 mm³
Zx 72.01 in³ 1,180,000 mm³
Zy 21.36 in³ 350,000.00 mm³
rx 5.20 in 132.00 mm
ry 1.96 in 49.90 mm
J 1.73 in⁴ 718,000.00 mm⁴
Cw 1,880.57 in⁶ 505,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W310×74.

Lighter in W310

W310×67

Weight
67.0 kg/m (-10%)
Depth
306.0 mm (-1.3%)
Ix
144,000,000 mm⁴ (-12%)

Heavier in W310

W310×79

Weight
79.0 kg/m (+6.0%)
Depth
306.0 mm (-1.3%)
Ix
177,000,000 mm⁴ (+7.9%)

Closest Iₓ in W310

W310×86

Weight
86.0 kg/m (+16%)
Depth
310.0 mm (0.0%)
Ix
198,000,000 mm⁴ (+21%)

Similar weight in W250

W250×73

Weight
73.0 kg/m (-2.0%)
Depth
253.0 mm (-18%)
Ix
113,000,000 mm⁴ (-31%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Imported; readily available in Canada. · Methodology