Steel Beam Sizes / AISC / HSS Square / HSS 4-1/2x4-1/2x1/2

HSS 4-1/2x4-1/2x1/2 Steel Beam Dimensions and Properties

AISC Square HSS · v16.0

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

Units

Section diagram

HSS 4-1/2x4-1/2x1/2 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 25.03 lb/ft 37.10 kg/m
Height 4.50 in 114.00 mm
Width 4.50 in 114.00 mm
Nominal tw 0.500 in 12.700 mm
Design tw 0.465 in 11.800 mm
Area 6.95 in² 4,480.00 mm²
Ix 18.10 in⁴ 7,530,000 mm⁴
Iy 18.10 in⁴ 7,530,000 mm⁴
Sx 8.03 in³ 132,000.00 mm³
Sy 8.03 in³ 132,000.00 mm³
Zx 10.20 in³ 167,000.00 mm³
Zy 10.20 in³ 167,000.00 mm³
rx 1.61 in 40.90 mm
ry 1.61 in 40.90 mm
J 31.30 in⁴ 13,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 4-1/2x4-1/2x1/2.

Lighter in Square HSS

HSS 5-1/2x5-1/2x3/8

Weight
24.9 lb/ft (-0.4%)
Depth
5.50 in (+22%)
Ix
29.7 in⁴ (+64%)

Heavier in Square HSS

HSS 8x8x1/4

Weight
25.8 lb/ft (+3.2%)
Depth
8.00 in (+78%)
Ix
70.7 in⁴ (+291%)

Closest Iₓ in Square HSS

HSS 5x5x5/16

Weight
19.1 lb/ft (-24%)
Depth
5.00 in (+11%)
Ix
19.0 in⁴ (+5.0%)
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Source: AISC Shapes Database v16.0 · Methodology