Steel Beam Sizes / AISC / Pipe / Pipe12xxS

Pipe12xxS 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

Pipe12xxS 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 126.00 lb/ft 187.00 kg/m
OD 12.750 in 323.800 mm
Nominal tw 1.000 in 25.400 mm
Design tw 0.930 in 23.600 mm
Area 35.40 in² 22,800.00 mm²
Ix 625.00 in⁴ 260,000,000 mm⁴
Iy 625.00 in⁴ 260,000,000 mm⁴
Sx 97.60 in³ 1,600,000 mm³
Sy 97.60 in³ 1,600,000 mm³
Zx 134.00 in³ 2,200,000 mm³
Zy 134.00 in³ 2,200,000 mm³
rx 4.20 in 107.00 mm
ry 4.20 in 107.00 mm
J 1,250.00 in⁴ 520,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus Pipe12xxS.

Lighter in Pipe sections

Pipe10xxS

Weight
104.0 lb/ft (-17%)
Depth
— in
Ix
354.0 in⁴ (-43%)

Heavier in Pipe sections

Pipe26xS

Weight
136.0 lb/ft (+7.9%)
Depth
— in
Ix
2,950.0 in⁴ (+372%)

Closest Iₓ in Pipe sections

Pipe16xS

Weight
82.9 lb/ft (-34%)
Depth
— in
Ix
665.0 in⁴ (+6.4%)
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Source: AISC Shapes Database v16.0 · Methodology