Steel Beam Sizes / UK / Universal Beams / UB 356×127×39

UB 356×127×39 Steel Beam Dimensions and Properties

UK Universal beams · v2023.11

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

Units

Section diagram

UB 356×127×39 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 26.27 lb/ft 39.10 kg/m
Depth, d 13.91 in 353.40 mm
Flange width, bf 4.96 in 126.00 mm
tw 0.260 in 6.600 mm
tf 0.421 in 10.700 mm
Area 7.72 in² 4,980.00 mm²
Ix 245.06 in⁴ 102,000,000 mm⁴
Iy 8.60 in⁴ 3,580,000 mm⁴
Sx 35.15 in³ 576,000.00 mm³
Sy 3.48 in³ 57,000.00 mm³
Zx 40.15 in³ 658,000.00 mm³
Zy 5.43 in³ 89,000.00 mm³
rx 5.63 in 143.00 mm
ry 1.06 in 26.80 mm
J 0.36 in⁴ 151,000.00 mm⁴
Cw 391.01 in⁶ 105,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UB 356×127×39.

Lighter in Universal beams

UB 406×140×39

Weight
39.0 kg/m (-0.3%)
Depth
398.0 mm (+13%)
Ix
125,000,000 mm⁴ (+23%)

Heavier in Universal beams

UB 305×165×40

Weight
40.3 kg/m (+3.1%)
Depth
303.4 mm (-14%)
Ix
85,000,000 mm⁴ (-17%)

Closest Iₓ in Universal beams

UB 305×165×46

Weight
46.1 kg/m (+18%)
Depth
306.6 mm (-13%)
Ix
99,000,000 mm⁴ (-2.9%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology