Steel Beam Sizes / Europe / Angles / L 80×80×9

L 80×80×9 Steel Beam Dimensions and Properties

EN Angles · v2026.1

Analyze in Beam Calculator Back to Angles

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

Units

Section diagram

L 80×80×9 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 7.26 lb/ft 10.80 kg/m
Width 3.15 in 80.00 mm
Height 3.15 in 80.00 mm
t 0.354 in 9.000 mm
Area 2.12 in² 1,370.00 mm²
Ix 1.92 in⁴ 800,000.00 mm⁴
Iy 1.92 in⁴ 800,000.00 mm⁴
Sx 0.85 in³ 14,000.00 mm³
Sy 0.85 in³ 14,000.00 mm³
rx 0.95 in 24.20 mm
ry 0.95 in 24.20 mm
J 0.10 in⁴ 40,300.00 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L 80×80×9.

Lighter in Angles

L 100×100×7

Weight
10.7 kg/m (-0.9%)
Depth
100.0 mm (+25%)
Ix
1,280,000 mm⁴ (+60%)

Heavier in Angles

L 90×90×8

Weight
10.9 kg/m (+0.9%)
Depth
90.0 mm (+13%)
Ix
1,040,000 mm⁴ (+30%)

Closest Iₓ in Angles

L 90×90×6

Weight
8.3 kg/m (-23%)
Depth
90.0 mm (+13%)
Ix
803,000 mm⁴ (+0.4%)
Analyze in Beam Calculator Compare in Angles finder

Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology