Steel Beam Sizes / CISC / HSS Round / HS178×9.5

HS178×9.5 Steel Beam Dimensions and Properties

CISC Round HSS · v12.1

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

Units

Section diagram

HS178×9.5 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 26.60 lb/ft 39.50 kg/m
OD 7.000 in 177.800 mm
Nominal tw 0.375 in 9.530 mm
Design tw 0.375 in 9.530 mm
Area 7.81 in² 5,040.00 mm²
Ix 43.00 in⁴ 17,900,000 mm⁴
Iy 43.00 in⁴ 17,900,000 mm⁴
Sx 12.27 in³ 201,000.00 mm³
Sy 12.27 in³ 201,000.00 mm³
Zx 16.48 in³ 270,000.00 mm³
Zy 16.48 in³ 270,000.00 mm³
rx 2.35 in 59.60 mm
ry 2.35 in 59.60 mm
J 86.01 in⁴ 35,800,000 mm⁴

Alternatives

Useful nearby sections

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

Lighter in Round HSS

HA168×9.5

Weight
37.3 kg/m (-5.6%)
Depth
— mm
Ix
13,800,000 mm⁴ (-23%)

Heavier in Round HSS

HA141×13

Weight
40.3 kg/m (+1.9%)
Depth
— mm
Ix
9,910,000 mm⁴ (-45%)

Closest Iₓ in Round HSS

HA168×13

Weight
48.7 kg/m (+23%)
Depth
— mm
Ix
17,400,000 mm⁴ (-2.8%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · CSA G40 · Availability: Check availability with the supplier. · Methodology