Steel Beam Sizes / AISC / HSS Round / HSS 20.000x0.313

HSS 20.000x0.313 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 20.000x0.313 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 65.77 lb/ft 97.90 kg/m
OD 20.000 in 508.000 mm
Nominal tw 0.313 in 7.950 mm
Design tw 0.291 in 7.390 mm
Area 18.00 in² 11,600.00 mm²
Ix 874.00 in⁴ 364,000,000 mm⁴
Iy 874.00 in⁴ 364,000,000 mm⁴
Sx 87.40 in³ 1,430,000 mm³
Sy 87.40 in³ 1,430,000 mm³
Zx 113.00 in³ 1,850,000 mm³
Zy 113.00 in³ 1,850,000 mm³
rx 6.97 in 177.00 mm
ry 6.97 in 177.00 mm
J 1,750.00 in⁴ 728,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 20.000x0.313.

Lighter in Round HSS

HSS 12.750x0.500

Weight
65.5 lb/ft (-0.4%)
Depth
— in
Ix
339.0 in⁴ (-61%)

Heavier in Round HSS

HSS 10.750x0.625

Weight
67.7 lb/ft (+2.9%)
Depth
— in
Ix
241.0 in⁴ (-72%)

Closest Iₓ in Round HSS

HSS 16.000x0.625

Weight
103.0 lb/ft (+57%)
Depth
— in
Ix
838.0 in⁴ (-4.1%)
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Source: AISC Shapes Database v16.0 · Methodology