Steel Beam Sizes / AISC / Angles / L3x3x1/2

L3x3x1/2 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

L3x3x1/2 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 9.40 lb/ft 14.00 kg/m
Width 3.00 in 76.20 mm
Height 3.00 in 76.20 mm
t 0.500 in 12.700 mm
Area 2.76 in² 1,780.00 mm²
Ix 2.20 in⁴ 916,000.00 mm⁴
Iy 2.20 in⁴ 916,000.00 mm⁴
Sx 1.06 in³ 17,400.00 mm³
Sy 1.06 in³ 17,400.00 mm³
Zx 1.91 in³ 31,300.00 mm³
Zy 1.91 in³ 31,300.00 mm³
rx 0.90 in 22.70 mm
ry 0.90 in 22.70 mm
J 0.23 in⁴ 95,700.00 mm⁴
Cw 0.14 in⁶ 38,700,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L3x3x1/2.

Lighter in L3

L3-1/2x3x7/16

Weight
9.1 lb/ft (-3.2%)
Depth
3.00 in (0.0%)
Ix
3.1 in⁴ (+41%)

Heavier in L3

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

Weight
9.8 lb/ft (+4.3%)
Depth
3.50 in (+17%)
Ix
3.3 in⁴ (+48%)

Closest Iₓ in L3

L3-1/2x2-1/2x5/16

Weight
6.1 lb/ft (-35%)
Depth
2.50 in (-17%)
Ix
2.2 in⁴ (0.0%)

Similar weight in L4

L4x3-1/2x3/8

Weight
9.1 lb/ft (-3.2%)
Depth
3.50 in (+17%)
Ix
4.2 in⁴ (+89%)
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Source: AISC Shapes Database v16.0 · Methodology