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

Pipe2-1/2STD 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

Pipe2-1/2STD 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 5.80 lb/ft 8.62 kg/m
OD 2.875 in 73.000 mm
Nominal tw 0.203 in 5.160 mm
Design tw 0.189 in 4.800 mm
Area 1.61 in² 1,040.00 mm²
Ix 1.45 in⁴ 604,000.00 mm⁴
Iy 1.45 in⁴ 604,000.00 mm⁴
Sx 1.01 in³ 16,600.00 mm³
Sy 1.01 in³ 16,600.00 mm³
Zx 1.37 in³ 22,500.00 mm³
Zy 1.37 in³ 22,500.00 mm³
rx 0.95 in 24.20 mm
ry 0.95 in 24.20 mm
J 2.89 in⁴ 1,200,000 mm⁴

Alternatives

Useful nearby sections

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

Lighter in Pipe sections

Pipe2xS

Weight
5.0 lb/ft (-13%)
Depth
— in
Ix
0.8 in⁴ (-43%)

Heavier in Pipe sections

Pipe3STD

Weight
7.6 lb/ft (+31%)
Depth
— in
Ix
2.9 in⁴ (+97%)

Closest Iₓ in Pipe sections

Pipe2xxS

Weight
9.0 lb/ft (+56%)
Depth
— in
Ix
1.3 in⁴ (-12%)
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Source: AISC Shapes Database v16.0 · Methodology