Steel Beam Sizes / CISC / HSS Square / HS178×178×9.5

HS178×178×9.5 Steel Beam Dimensions and Properties

CISC Square HSS · v12.1

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

Units

Section diagram

HS178×178×9.5 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 32.60 lb/ft 48.50 kg/m
Height 7.00 in 177.80 mm
Width 7.00 in 177.80 mm
Nominal tw 0.375 in 9.530 mm
Design tw 0.375 in 9.530 mm
Area 9.58 in² 6,180.00 mm²
Ix 68.71 in⁴ 28,600,000 mm⁴
Iy 68.71 in⁴ 28,600,000 mm⁴
Sx 19.65 in³ 322,000.00 mm³
Sy 19.65 in³ 322,000.00 mm³
Zx 23.49 in³ 385,000.00 mm³
Zy 23.49 in³ 385,000.00 mm³
rx 2.68 in 68.00 mm
ry 2.68 in 68.00 mm
J 111.72 in⁴ 46,500,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HS178×178×9.5.

Lighter in Square HSS

HA203×203×7.9

Weight
47.4 kg/m (-2.1%)
Depth
203.2 mm (+14%)
Ix
34,600,000 mm⁴ (+21%)

Heavier in Square HSS

HA152×152×13

Weight
52.4 kg/m (+8.0%)
Depth
152.4 mm (-14%)
Ix
19,600,000 mm⁴ (-31%)

Closest Iₓ in Square HSS

HA203×203×6.4

Weight
38.4 kg/m (-21%)
Depth
203.2 mm (+14%)
Ix
28,500,000 mm⁴ (-0.3%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · CSA G40 · Methodology