Steel Beam Sizes / CISC / HSS Square / HA178×178×6.4

HA178×178×6.4 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

HA178×178×6.4 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 0.225 in 5.720 mm
Area 5.97 in² 3,850.00 mm²
Ix 45.17 in⁴ 18,800,000 mm⁴
Iy 45.17 in⁴ 18,800,000 mm⁴
Sx 12.94 in³ 212,000.00 mm³
Sy 12.94 in³ 212,000.00 mm³
Zx 15.07 in³ 247,000.00 mm³
Zy 15.07 in³ 247,000.00 mm³
rx 2.75 in 69.90 mm
ry 2.75 in 69.90 mm
J 71.35 in⁴ 29,700,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HA178×178×6.4.

Lighter in Square HSS

HA102×102×13

Weight
32.2 kg/m (-3.6%)
Depth
101.6 mm (-43%)
Ix
4,880,000 mm⁴ (-74%)

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 (-26%)

Closest Iₓ in Square HSS

HA152×152×13

Weight
52.4 kg/m (+57%)
Depth
152.4 mm (-14%)
Ix
19,600,000 mm⁴ (+4.3%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · ASTM A500 · Methodology