Steel Beam Sizes / Australia / Welded Columns / 400 WC 181

400 WC 181 Steel Beam Dimensions and Properties

ASNZS Welded columns · v2019.11

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

Units

Section diagram

400 WC 181 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 121.63 lb/ft 181.00 kg/m
Depth, d 15.35 in 390.00 mm
Flange width, bf 15.75 in 400.00 mm
tw 0.787 in 20.000 mm
tf 0.787 in 20.000 mm
Area 35.65 in² 23,000.00 mm²
Ix 1,489.56 in⁴ 620,000,000 mm⁴
Iy 514.14 in⁴ 214,000,000 mm⁴
Sx 194.02 in³ 3,179,487 mm³
Sy 65.30 in³ 1,070,000 mm³
Zx 217.85 in³ 3,570,000 mm³
Zy 100.08 in³ 1,640,000 mm³
rx 6.46 in 164.18 mm
ry 3.80 in 96.46 mm
J 7.38 in⁴ 3,070,000 mm⁴
Cw 27,221.69 in⁶ 7,310,000,259,072 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus 400 WC 181.

Lighter in Welded columns

400 WC 144

Weight
144.0 kg/m (-20%)
Depth
382.0 mm (-2.1%)
Ix
486,000,000 mm⁴ (-22%)

Heavier in Welded columns

350 WC 197

Weight
197.0 kg/m (+8.8%)
Depth
331.0 mm (-15%)
Ix
486,000,000 mm⁴ (-22%)

Closest Iₓ in Welded columns

350 WC 258

Weight
258.0 kg/m (+43%)
Depth
347.0 mm (-11%)
Ix
661,000,000 mm⁴ (+6.6%)
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Source: Australian-Sections.xlsx (Sheets 1-19) · v2019.11 · Methodology