Steel Beam Sizes / UK / Universal Beams / UB 178×102×19

UB 178×102×19 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 178×102×19 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 12.77 lb/ft 19.00 kg/m
Depth, d 7.00 in 177.80 mm
Flange width, bf 3.98 in 101.20 mm
tw 0.189 in 4.800 mm
tf 0.311 in 7.900 mm
Area 3.77 in² 2,430.00 mm²
Ix 32.67 in⁴ 13,600,000 mm⁴
Iy 3.29 in⁴ 1,370,000 mm⁴
Sx 9.28 in³ 152,000.00 mm³
Sy 1.65 in³ 27,000.00 mm³
Zx 10.44 in³ 171,000.00 mm³
Zy 2.54 in³ 41,600.00 mm³
rx 2.94 in 74.80 mm
ry 0.93 in 23.70 mm
J 0.11 in⁴ 44,100.00 mm⁴
Cw 36.68 in⁶ 9,850,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UB 178×102×19.

Lighter in Universal beams

UB 152×89×16

Weight
16.0 kg/m (-16%)
Depth
152.4 mm (-14%)
Ix
8,340,000 mm⁴ (-39%)

Heavier in Universal beams

UB 254×102×22

Weight
22.0 kg/m (+16%)
Depth
254.0 mm (+43%)
Ix
28,400,000 mm⁴ (+109%)

Closest Iₓ in Universal beams

UB 203×102×23

Weight
23.1 kg/m (+22%)
Depth
203.2 mm (+14%)
Ix
21,000,000 mm⁴ (+54%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology