Steel Beam Sizes / Europe / IPN Sections / IPN 550

IPN 550 Steel Beam Dimensions and Properties

EN IPN taper flange beams · v2026.1

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

Units

Section diagram

IPN 550 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 111.55 lb/ft 166.00 kg/m
Depth, d 21.65 in 550.00 mm
Flange width, bf 7.87 in 200.00 mm
tw 0.748 in 19.000 mm
tf 1.181 in 30.000 mm
Area 32.86 in² 21,200.00 mm²
Ix 2,382.81 in⁴ 991,800,000 mm⁴
Iy 83.85 in⁴ 34,900,000 mm⁴
Sx 220.30 in³ 3,610,000 mm³
Sy 21.30 in³ 349,000.00 mm³
Zx 258.74 in³ 4,240,000 mm³
Zy 36.13 in³ 592,000.00 mm³
rx 8.50 in 216.00 mm
ry 1.57 in 40.00 mm
J 13.07 in⁴ 5,440,000 mm⁴
Cw 8,900.11 in⁶ 2,390,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus IPN 550.

Lighter in IPN taper flange beams

IPN 500

Weight
141.0 kg/m (-15%)
Depth
500.0 mm (-9.1%)
Ix
687,400,000 mm⁴ (-31%)

Heavier in IPN taper flange beams

IPN 600

Weight
199.0 kg/m (+20%)
Depth
600.0 mm (+9.1%)
Ix
1,390,000,000 mm⁴ (+40%)

Closest Iₓ in IPN taper flange beams

IPN 450

Weight
115.0 kg/m (-31%)
Depth
450.0 mm (-18%)
Ix
458,500,000 mm⁴ (-54%)
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Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · EN 10365:2017 · Methodology