Steel Beam Sizes / AISC / HSS Rectangular / HSS 8x4x1/2

HSS 8x4x1/2 Steel Beam Dimensions and Properties

AISC Rectangular HSS · v16.0

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

Units

Section diagram

HSS 8x4x1/2 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 35.24 lb/ft 52.20 kg/m
Height 8.00 in 203.00 mm
Width 4.00 in 102.00 mm
Nominal tw 0.500 in 12.700 mm
Design tw 0.465 in 11.800 mm
Area 9.74 in² 6,280.00 mm²
Ix 71.80 in⁴ 29,900,000 mm⁴
Iy 23.60 in⁴ 9,820,000 mm⁴
Sx 17.90 in³ 293,000.00 mm³
Sy 11.80 in³ 193,000.00 mm³
Zx 23.50 in³ 385,000.00 mm³
Zy 14.30 in³ 234,000.00 mm³
rx 2.71 in 68.80 mm
ry 1.56 in 39.60 mm
J 61.10 in⁴ 25,400,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 8x4x1/2.

Lighter in Rectangular HSS

HSS 10x5x3/8

Weight
35.1 lb/ft (-0.3%)
Depth
10.00 in (+25%)
Ix
120.0 in⁴ (+67%)

Heavier in Rectangular HSS

HSS 12x10x1/4

Weight
36.0 lb/ft (+2.2%)
Depth
12.00 in (+50%)
Ix
216.0 in⁴ (+201%)

Closest Iₓ in Rectangular HSS

HSS 10x2x3/8

Weight
27.5 lb/ft (-22%)
Depth
10.00 in (+25%)
Ix
71.7 in⁴ (-0.1%)
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Source: AISC Shapes Database v16.0 · Methodology