Steel Beam Sizes / AISC / Pipe / Pipe2-1/2xxS

Pipe2-1/2xxS 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

Pipe2-1/2xxS 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 13.70 lb/ft 20.40 kg/m
OD 2.875 in 73.000 mm
Nominal tw 0.552 in 14.000 mm
Design tw 0.514 in 13.100 mm
Area 3.83 in² 2,470.00 mm²
Ix 2.78 in⁴ 1,160,000 mm⁴
Iy 2.78 in⁴ 1,160,000 mm⁴
Sx 1.94 in³ 31,800.00 mm³
Sy 1.94 in³ 31,800.00 mm³
Zx 2.91 in³ 47,700.00 mm³
Zy 2.91 in³ 47,700.00 mm³
rx 0.85 in 21.70 mm
ry 0.85 in 21.70 mm
J 5.56 in⁴ 2,310,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus Pipe2-1/2xxS.

Lighter in Pipe sections

Pipe3-1/2xS

Weight
12.5 lb/ft (-8.8%)
Depth
— in
Ix
5.9 in⁴ (+114%)

Heavier in Pipe sections

Pipe5STD

Weight
14.6 lb/ft (+6.6%)
Depth
— in
Ix
14.3 in⁴ (+414%)

Closest Iₓ in Pipe sections

Pipe3STD

Weight
7.6 lb/ft (-45%)
Depth
— in
Ix
2.9 in⁴ (+2.5%)
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Source: AISC Shapes Database v16.0 · Methodology