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

Pipe2-1/2xS Steel Beam Dimensions and Properties

AISC Pipe sections · v16.0

Analyze in Beam Calculator Back to Pipe

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

Units

Section diagram

Pipe2-1/2xS 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 7.67 lb/ft 11.40 kg/m
OD 2.875 in 73.000 mm
Nominal tw 0.276 in 7.010 mm
Design tw 0.257 in 6.530 mm
Area 2.10 in² 1,350.00 mm²
Ix 1.83 in⁴ 762,000.00 mm⁴
Iy 1.83 in⁴ 762,000.00 mm⁴
Sx 1.27 in³ 20,800.00 mm³
Sy 1.27 in³ 20,800.00 mm³
Zx 1.77 in³ 29,000.00 mm³
Zy 1.77 in³ 29,000.00 mm³
rx 0.93 in 23.60 mm
ry 0.93 in 23.60 mm
J 3.66 in⁴ 1,520,000 mm⁴

Alternatives

Useful nearby sections

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

Lighter in Pipe sections

Pipe3STD

Weight
7.6 lb/ft (-1.2%)
Depth
— in
Ix
2.9 in⁴ (+56%)

Heavier in Pipe sections

Pipe2xxS

Weight
9.0 lb/ft (+18%)
Depth
— in
Ix
1.3 in⁴ (-31%)

Closest Iₓ in Pipe sections

Pipe2-1/2STD

Weight
5.8 lb/ft (-24%)
Depth
— in
Ix
1.5 in⁴ (-21%)
Analyze in Beam Calculator Compare in Pipe finder

Source: AISC Shapes Database v16.0 · Methodology