Steel Beam Sizes / AISC / Pipe / Pipe20xS

Pipe20xS 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

Pipe20xS 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 104.00 lb/ft 155.00 kg/m
OD 20.000 in 508.000 mm
Nominal tw 0.500 in 12.700 mm
Design tw 0.465 in 11.800 mm
Area 27.60 in² 17,800.00 mm²
Ix 1,320.00 in⁴ 549,000,000 mm⁴
Iy 1,320.00 in⁴ 549,000,000 mm⁴
Sx 132.00 in³ 2,160,000 mm³
Sy 132.00 in³ 2,160,000 mm³
Zx 172.00 in³ 2,820,000 mm³
Zy 172.00 in³ 2,820,000 mm³
rx 6.91 in 176.00 mm
ry 6.91 in 176.00 mm
J 2,640.00 in⁴ 1,100,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus Pipe20xS.

Lighter in Pipe sections

Pipe26STD

Weight
103.0 lb/ft (-1.0%)
Depth
— in
Ix
2,320.0 in⁴ (+76%)

Heavier in Pipe sections

Pipe12xxS

Weight
126.0 lb/ft (+21%)
Depth
— in
Ix
625.0 in⁴ (-53%)

Closest Iₓ in Pipe sections

Pipe20STD

Weight
78.7 lb/ft (-24%)
Depth
— in
Ix
1,040.0 in⁴ (-21%)
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Source: AISC Shapes Database v16.0 · Methodology