Steel Beam Sizes / CISC / HSS Square / HS178×178×6.4

HS178×178×6.4 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

HS178×178×6.4 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 22.40 lb/ft 33.40 kg/m
Height 7.00 in 177.80 mm
Width 7.00 in 177.80 mm
Nominal tw 0.250 in 6.350 mm
Design tw 0.250 in 6.350 mm
Area 6.59 in² 4,250.00 mm²
Ix 49.49 in⁴ 20,600,000 mm⁴
Iy 49.49 in⁴ 20,600,000 mm⁴
Sx 14.10 in³ 231,000.00 mm³
Sy 14.10 in³ 231,000.00 mm³
Zx 16.54 in³ 271,000.00 mm³
Zy 16.54 in³ 271,000.00 mm³
rx 2.74 in 69.60 mm
ry 2.74 in 69.60 mm
J 78.32 in⁴ 32,600,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HS178×178×6.4.

Lighter in Square HSS

HA102×102×13

Weight
32.2 kg/m (-3.6%)
Depth
101.6 mm (-43%)
Ix
4,880,000 mm⁴ (-76%)

Heavier in Square HSS

HA152×152×7.9

Weight
34.7 kg/m (+4.5%)
Depth
152.4 mm (-14%)
Ix
13,900,000 mm⁴ (-33%)

Closest Iₓ in Square HSS

HS152×152×13

Weight
52.4 kg/m (+57%)
Depth
152.4 mm (-14%)
Ix
21,000,000 mm⁴ (+1.9%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · CSA G40 · Methodology