Steel Beam Sizes / CISC / HSS Square / HA51×51×3.2

HA51×51×3.2 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

HA51×51×3.2 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 3.05 lb/ft 4.55 kg/m
Height 2.00 in 50.80 mm
Width 2.00 in 50.80 mm
Nominal tw 0.125 in 3.180 mm
Design tw 0.113 in 2.860 mm
Area 0.82 in² 527.00 mm²
Ix 0.48 in⁴ 198,000.00 mm⁴
Iy 0.48 in⁴ 198,000.00 mm⁴
Sx 0.48 in³ 7,790.00 mm³
Sy 0.48 in³ 7,790.00 mm³
Zx 0.57 in³ 9,350.00 mm³
Zy 0.57 in³ 9,350.00 mm³
rx 0.76 in 19.40 mm
ry 0.76 in 19.40 mm
J 0.78 in⁴ 323,000.00 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HA51×51×3.2.

Lighter in Square HSS

HA38×38×3.2

Weight
3.3 kg/m (-28%)
Depth
38.1 mm (-25%)
Ix
76,800 mm⁴ (-61%)

Heavier in Square HSS

HA64×64×3.2

Weight
5.8 kg/m (+28%)
Depth
63.5 mm (+25%)
Ix
406,000 mm⁴ (+105%)

Closest Iₓ in Square HSS

HS51×51×3.2

Weight
4.6 kg/m (0.0%)
Depth
50.8 mm (0.0%)
Ix
214,000 mm⁴ (+8.1%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · ASTM A500 · Methodology