Steel Beam Sizes / CISC / HSS Round / HA273×4.8

HA273×4.8 Steel Beam Dimensions and Properties

CISC Round HSS · v12.1

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Diagram, properties emphasis, and nearby alternatives use the selected unit system.

Units

Section diagram

HA273×4.8 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 21.20 lb/ft 31.60 kg/m
OD 10.752 in 273.100 mm
Nominal tw 0.188 in 4.780 mm
Design tw 0.169 in 4.300 mm
Area 5.63 in² 3,630.00 mm²
Ix 78.80 in⁴ 32,800,000 mm⁴
Iy 78.80 in⁴ 32,800,000 mm⁴
Sx 14.65 in³ 240,000.00 mm³
Sy 14.65 in³ 240,000.00 mm³
Zx 18.98 in³ 311,000.00 mm³
Zy 18.98 in³ 311,000.00 mm³
rx 3.74 in 95.00 mm
ry 3.74 in 95.00 mm
J 157.60 in⁴ 65,600,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HA273×4.8.

Lighter in Round HSS

HA141×9.5

Weight
31.0 kg/m (-1.9%)
Depth
— mm
Ix
7,910,000 mm⁴ (-76%)

Heavier in Round HSS

HA219×6.4

Weight
33.3 kg/m (+5.7%)
Depth
— mm
Ix
21,800,000 mm⁴ (-34%)

Closest Iₓ in Round HSS

HS245×6.4

Weight
37.3 kg/m (+18%)
Depth
— mm
Ix
33,700,000 mm⁴ (+2.7%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · ASTM A500 · Methodology