Steel Beam Sizes / AISC / HP-Shapes / HP18x181

HP18x181 Steel Beam Dimensions and Properties

AISC Bearing piles · v16.0

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

Units

Section diagram

HP18x181 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 181.00 lb/ft 269.00 kg/m
Depth, d 18.00 in 457.00 mm
Flange width, bf 18.00 in 457.00 mm
tw 1.000 in 25.400 mm
tf 1.000 in 25.400 mm
Area 53.20 in² 34,300.00 mm²
Ix 3,020.00 in⁴ 1,260,000,000 mm⁴
Iy 974.00 in⁴ 405,000,000 mm⁴
Sx 336.00 in³ 5,510,000 mm³
Sy 108.00 in³ 1,770,000 mm³
Zx 379.00 in³ 6,210,000 mm³
Zy 167.00 in³ 2,740,000 mm³
rx 7.53 in 191.00 mm
ry 4.28 in 109.00 mm
J 20.70 in⁴ 8,620,000 mm⁴
Cw 70,400.00 in⁶ 18,900,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HP18x181.

Lighter in HP18

HP18x157

Weight
157.0 lb/ft (-13%)
Depth
17.70 in (-1.7%)
Ix
2,570.0 in⁴ (-15%)

Heavier in HP18

HP18x204

Weight
204.0 lb/ft (+13%)
Depth
18.30 in (+1.7%)
Ix
3,480.0 in⁴ (+15%)

Closest Iₓ in HP18

HP18x135

Weight
135.0 lb/ft (-25%)
Depth
17.50 in (-2.8%)
Ix
2,200.0 in⁴ (-27%)

Similar weight in HP16

HP16x183

Weight
183.0 lb/ft (+1.1%)
Depth
16.50 in (-8.3%)
Ix
2,510.0 in⁴ (-17%)
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Source: AISC Shapes Database v16.0 · Methodology