Steel Beam Sizes / AISC / Pipe / Pipe3xS

Pipe3xS Steel Beam Dimensions and Properties

AISC Pipe sections · v16.0

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

Units

Section diagram

Pipe3xS 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 10.30 lb/ft 15.30 kg/m
OD 3.500 in 88.900 mm
Nominal tw 0.300 in 7.620 mm
Design tw 0.280 in 7.110 mm
Area 2.83 in² 1,830.00 mm²
Ix 3.70 in⁴ 1,540,000 mm⁴
Iy 3.70 in⁴ 1,540,000 mm⁴
Sx 2.11 in³ 34,600.00 mm³
Sy 2.11 in³ 34,600.00 mm³
Zx 2.91 in³ 47,700.00 mm³
Zy 2.91 in³ 47,700.00 mm³
rx 1.14 in 29.00 mm
ry 1.14 in 29.00 mm
J 7.40 in⁴ 3,080,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus Pipe3xS.

Lighter in Pipe sections

Pipe3-1/2STD

Weight
9.1 lb/ft (-11%)
Depth
— in
Ix
4.5 in⁴ (+22%)

Heavier in Pipe sections

Pipe4STD

Weight
10.8 lb/ft (+4.9%)
Depth
— in
Ix
6.8 in⁴ (+84%)

Closest Iₓ in Pipe sections

Pipe3STD

Weight
7.6 lb/ft (-26%)
Depth
— in
Ix
2.9 in⁴ (-23%)
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Source: AISC Shapes Database v16.0 · Methodology