Steel Beam Sizes / AISC / HSS Round / HSS 12.750x0.750

HSS 12.750x0.750 Steel Beam Dimensions and Properties

AISC Round HSS · v16.0

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

Units

Section diagram

HSS 12.750x0.750 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 96.21 lb/ft 143.00 kg/m
OD 12.800 in 324.000 mm
Nominal tw 0.750 in 19.100 mm
Design tw 0.698 in 17.700 mm
Area 26.40 in² 17,000.00 mm²
Ix 481.00 in⁴ 200,000,000 mm⁴
Iy 481.00 in⁴ 200,000,000 mm⁴
Sx 75.50 in³ 1,240,000 mm³
Sy 75.50 in³ 1,240,000 mm³
Zx 101.00 in³ 1,660,000 mm³
Zy 101.00 in³ 1,660,000 mm³
rx 4.27 in 108.00 mm
ry 4.27 in 108.00 mm
J 962.00 in⁴ 400,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 12.750x0.750.

Lighter in Round HSS

HSS 24.000x0.375

Weight
94.7 lb/ft (-1.6%)
Depth
— in
Ix
1,810.0 in⁴ (+276%)

Heavier in Round HSS

HSS 26.000x0.375

Weight
102.7 lb/ft (+6.8%)
Depth
— in
Ix
2,310.0 in⁴ (+380%)

Closest Iₓ in Round HSS

HSS 13.375x0.625

Weight
85.2 lb/ft (-11%)
Depth
— in
Ix
479.0 in⁴ (-0.4%)
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Source: AISC Shapes Database v16.0 · Methodology