Steel Beam Sizes / CISC / HSS Square / HA178×178×4.8

HA178×178×4.8 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

HA178×178×4.8 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 17.10 lb/ft 25.50 kg/m
Height 7.00 in 177.80 mm
Width 7.00 in 177.80 mm
Nominal tw 0.188 in 4.780 mm
Design tw 0.169 in 4.300 mm
Area 4.56 in² 2,940.00 mm²
Ix 35.08 in⁴ 14,600,000 mm⁴
Iy 35.08 in⁴ 14,600,000 mm⁴
Sx 10.01 in³ 164,000.00 mm³
Sy 10.01 in³ 164,000.00 mm³
Zx 11.59 in³ 190,000.00 mm³
Zy 11.59 in³ 190,000.00 mm³
rx 2.78 in 70.50 mm
ry 2.78 in 70.50 mm
J 54.78 in⁴ 22,800,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HA178×178×4.8.

Lighter in Square HSS

HA127×127×6.4

Weight
23.2 kg/m (-8.8%)
Depth
127.0 mm (-29%)
Ix
6,490,000 mm⁴ (-56%)

Heavier in Square HSS

HA102×102×9.5

Weight
25.7 kg/m (+1.2%)
Depth
101.6 mm (-43%)
Ix
4,190,000 mm⁴ (-71%)

Closest Iₓ in Square HSS

HS152×152×7.9

Weight
34.7 kg/m (+37%)
Depth
152.4 mm (-14%)
Ix
15,100,000 mm⁴ (+3.4%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · ASTM A500 · Methodology