Steel Beam Sizes / AISC / Double Angles / 2L7x4x1/2x3/4SLBB

2L7x4x1/2x3/4SLBB Steel Beam Dimensions and Properties

AISC Double angles · v16.0

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

Units

Section diagram

2L7x4x1/2x3/4SLBB 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 35.80 lb/ft 53.00 kg/m
Width 7.00 in 178.00 mm
Height 4.00 in 102.00 mm
t 0.500 in 12.700 mm
Area 10.50 in² 6,770.00 mm²
Ix 13.00 in⁴ 5,410,000 mm⁴
Sx 4.20 in³ 68,800.00 mm³
rx 1.11 in 28.20 mm

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus 2L7x4x1/2x3/4SLBB.

Lighter in Double angles

2L6x6x7/16

Weight
34.4 lb/ft (-3.9%)
Depth
6.00 in (+50%)
Ix
35.2 in⁴ (+171%)

Heavier in Double angles

2L6x4x9/16LLBB

Weight
36.2 lb/ft (+1.1%)
Depth
6.00 in (+50%)
Ix
38.4 in⁴ (+195%)

Closest Iₓ in Double angles

2L7x4x1/2SLBB

Weight
35.8 lb/ft (0.0%)
Depth
4.00 in (0.0%)
Ix
13.0 in⁴ (0.0%)
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Source: AISC Shapes Database v16.0 · Methodology