Steel Beam Sizes / UK / Universal Beams / UB 305×165×54

UB 305×165×54 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 305×165×54 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 36.29 lb/ft 54.00 kg/m
Depth, d 12.22 in 310.40 mm
Flange width, bf 6.57 in 166.90 mm
tw 0.311 in 7.900 mm
tf 0.539 in 13.700 mm
Area 10.66 in² 6,880.00 mm²
Ix 281.09 in⁴ 117,000,000 mm⁴
Iy 25.47 in⁴ 10,600,000 mm⁴
Sx 46.01 in³ 754,000.00 mm³
Sy 7.75 in³ 127,000.00 mm³
Zx 51.63 in³ 846,000.00 mm³
Zy 11.96 in³ 196,000.00 mm³
rx 5.12 in 130.00 mm
ry 1.55 in 39.30 mm
J 0.84 in⁴ 348,000.00 mm⁴
Cw 871.39 in⁶ 234,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UB 305×165×54.

Lighter in Universal beams

UB 457×152×52

Weight
52.3 kg/m (-3.1%)
Depth
449.8 mm (+45%)
Ix
214,000,000 mm⁴ (+83%)

Heavier in Universal beams

UB 406×178×54

Weight
54.1 kg/m (+0.2%)
Depth
402.6 mm (+30%)
Ix
187,000,000 mm⁴ (+60%)

Closest Iₓ in Universal beams

UB 356×171×45

Weight
45.0 kg/m (-17%)
Depth
351.4 mm (+13%)
Ix
121,000,000 mm⁴ (+3.4%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology