Steel Beam Sizes / CISC / HSS Square / HA305×305×9.5

HA305×305×9.5 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

HA305×305×9.5 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 58.10 lb/ft 86.50 kg/m
Height 12.00 in 304.80 mm
Width 12.00 in 304.80 mm
Nominal tw 0.375 in 9.530 mm
Design tw 0.338 in 8.580 mm
Area 15.47 in² 9,980.00 mm²
Ix 345.96 in⁴ 144,000,000 mm⁴
Iy 345.96 in⁴ 144,000,000 mm⁴
Sx 57.85 in³ 948,000.00 mm³
Sy 57.85 in³ 948,000.00 mm³
Zx 67.13 in³ 1,100,000 mm³
Zy 67.13 in³ 1,100,000 mm³
rx 4.72 in 120.00 mm
ry 4.72 in 120.00 mm
J 545.37 in⁴ 227,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HA305×305×9.5.

Lighter in Square HSS

HA356×356×7.9

Weight
85.4 kg/m (-1.0%)
Depth
355.6 mm (+17%)
Ix
198,000,000 mm⁴ (+38%)

Heavier in Square HSS

HA203×203×16

Weight
88.3 kg/m (+2.1%)
Depth
203.2 mm (-33%)
Ix
59,500,000 mm⁴ (-59%)

Closest Iₓ in Square HSS

HS305×305×7.9

Weight
72.7 kg/m (-16%)
Depth
304.8 mm (0.0%)
Ix
135,000,000 mm⁴ (-6.3%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · ASTM A500 · Methodology