Steel Beam Sizes / UK / Angles / L 45×45×7

L 45×45×7 Steel Beam Dimensions and Properties

UK Angles · v2023.11

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

Units

Section diagram

L 45×45×7 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 3.09 lb/ft 4.60 kg/m
Width 1.77 in 45.00 mm
Height 1.77 in 45.00 mm
t 0.276 in 7.000 mm
Area 0.91 in² 586.00 mm²
Ix 0.25 in⁴ 104,000.00 mm⁴
Iy 0.25 in⁴ 104,000.00 mm⁴
Sx 0.20 in³ 3,310.00 mm³
Sy 0.20 in³ 3,310.00 mm³
rx 0.52 in 13.30 mm
ry 0.52 in 13.30 mm
J 0.03 in⁴ 10,600.00 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus L 45×45×7.

Lighter in Angles

L 60×60×5

Weight
4.6 kg/m (-0.7%)
Depth
60.0 mm (+33%)
Ix
194,000 mm⁴ (+87%)

Heavier in Angles

L 75×75×4

Weight
4.7 kg/m (+1.1%)
Depth
75.0 mm (+67%)
Ix
314,000 mm⁴ (+202%)

Closest Iₓ in Angles

L 50×50×5

Weight
3.8 kg/m (-18%)
Depth
50.0 mm (+11%)
Ix
110,000 mm⁴ (+5.8%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Eurocode 3 - UK National Annex · Methodology