Steel Beam Sizes / CISC / HSS Square / HA203×203×7.9

HA203×203×7.9 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

HA203×203×7.9 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 31.90 lb/ft 47.40 kg/m
Height 8.00 in 203.20 mm
Width 8.00 in 203.20 mm
Nominal tw 0.313 in 7.940 mm
Design tw 0.281 in 7.150 mm
Area 8.49 in² 5,480.00 mm²
Ix 83.13 in⁴ 34,600,000 mm⁴
Iy 83.13 in⁴ 34,600,000 mm⁴
Sx 20.81 in³ 341,000.00 mm³
Sy 20.81 in³ 341,000.00 mm³
Zx 24.35 in³ 399,000.00 mm³
Zy 24.35 in³ 399,000.00 mm³
rx 3.13 in 79.50 mm
ry 3.13 in 79.50 mm
J 131.90 in⁴ 54,900,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HA203×203×7.9.

Lighter in Square HSS

HA127×127×13

Weight
42.3 kg/m (-11%)
Depth
127.0 mm (-38%)
Ix
10,600,000 mm⁴ (-69%)

Heavier in Square HSS

HA178×178×9.5

Weight
48.5 kg/m (+2.2%)
Depth
177.8 mm (-13%)
Ix
26,300,000 mm⁴ (-24%)

Closest Iₓ in Square HSS

HS178×178×13

Weight
62.6 kg/m (+32%)
Depth
177.8 mm (-13%)
Ix
35,200,000 mm⁴ (+1.7%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · ASTM A500 · Methodology