Steel Beam Sizes / AISC / Angles / L3-1/2x3-1/2x1/2

L3-1/2x3-1/2x1/2 Steel Beam Dimensions and Properties

AISC Angles · v16.0

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

Units

Section diagram

L3-1/2x3-1/2x1/2 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 11.10 lb/ft 16.50 kg/m
Width 3.50 in 88.90 mm
Height 3.50 in 88.90 mm
t 0.500 in 12.700 mm
Area 3.25 in² 2,100.00 mm²
Ix 3.63 in⁴ 1,510,000 mm⁴
Iy 3.63 in⁴ 1,510,000 mm⁴
Sx 1.48 in³ 24,300.00 mm³
Sy 1.48 in³ 24,300.00 mm³
Zx 2.66 in³ 43,600.00 mm³
Zy 2.66 in³ 43,600.00 mm³
rx 1.05 in 26.70 mm
ry 1.05 in 26.70 mm
J 0.28 in⁴ 117,000.00 mm⁴
Cw 0.24 in⁶ 63,900,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L3-1/2x3-1/2x1/2.

Lighter in L3

L3-1/2x3x1/2

Weight
10.2 lb/ft (-8.1%)
Depth
3.00 in (-14%)
Ix
3.5 in⁴ (-5.0%)

Closest Iₓ in L3

L3-1/2x3-1/2x7/16

Weight
9.8 lb/ft (-12%)
Depth
3.50 in (0.0%)
Ix
3.3 in⁴ (-10%)

Similar weight in L4

L4x3x1/2

Weight
11.1 lb/ft (0.0%)
Depth
3.00 in (-14%)
Ix
5.0 in⁴ (+38%)
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Source: AISC Shapes Database v16.0 · Methodology