Steel Beam Sizes / AISC / HSS Round / HSS 3.500x0.313

HSS 3.500x0.313 Steel Beam Dimensions and Properties

AISC Round HSS · v16.0

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

Units

Section diagram

HSS 3.500x0.313 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 10.66 lb/ft 15.90 kg/m
OD 3.500 in 88.900 mm
Nominal tw 0.313 in 7.950 mm
Design tw 0.291 in 7.390 mm
Area 2.93 in² 1,890.00 mm²
Ix 3.81 in⁴ 1,590,000 mm⁴
Iy 3.81 in⁴ 1,590,000 mm⁴
Sx 2.18 in³ 35,700.00 mm³
Sy 2.18 in³ 35,700.00 mm³
Zx 3.00 in³ 49,200.00 mm³
Zy 3.00 in³ 49,200.00 mm³
rx 1.14 in 29.00 mm
ry 1.14 in 29.00 mm
J 7.61 in⁴ 3,170,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 3.500x0.313.

Lighter in Round HSS

HSS 3.500x0.300

Weight
10.3 lb/ft (-3.8%)
Depth
— in
Ix
3.7 in⁴ (-3.1%)

Heavier in Round HSS

HSS 4.500x0.237

Weight
10.8 lb/ft (+1.3%)
Depth
— in
Ix
6.8 in⁴ (+78%)

Closest Iₓ in Round HSS

HSS 4.000x0.188

Weight
7.7 lb/ft (-28%)
Depth
— in
Ix
3.8 in⁴ (+0.5%)
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Source: AISC Shapes Database v16.0 · Methodology