Steel Beam Sizes / Europe / UPN Channels / UPN 300

UPN 300 Steel Beam Dimensions and Properties

EN UPN taper flange channels · v2026.1

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

Units

Section diagram

UPN 300 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 31.04 lb/ft 46.20 kg/m
Depth, d 11.81 in 300.00 mm
Flange width, bf 3.94 in 100.00 mm
tw 0.394 in 10.000 mm
tf 0.630 in 16.000 mm
Area 9.11 in² 5,880.00 mm²
Ix 192.92 in⁴ 80,300,000 mm⁴
Iy 11.89 in⁴ 4,950,000 mm⁴
Sx 32.65 in³ 535,000.00 mm³
Sy 4.15 in³ 68,000.00 mm³
Zx 38.57 in³ 632,000.00 mm³
Zy 7.93 in³ 130,000.00 mm³
rx 4.61 in 117.00 mm
ry 1.14 in 29.00 mm
J 0.90 in⁴ 374,000.00 mm⁴
Cw 257.32 in⁶ 69,100,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UPN 300.

Lighter in UPN taper flange channels

UPN 280

Weight
41.8 kg/m (-9.5%)
Depth
280.0 mm (-6.7%)
Ix
62,800,000 mm⁴ (-22%)

Heavier in UPN taper flange channels

UPN 320

Weight
59.5 kg/m (+29%)
Depth
320.0 mm (+6.7%)
Ix
109,000,000 mm⁴ (+36%)

Closest Iₓ in UPN taper flange channels

UPN 260

Weight
37.9 kg/m (-18%)
Depth
260.0 mm (-13%)
Ix
48,200,000 mm⁴ (-40%)
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Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology