Steel Beam Sizes / UK / Universal Beams / UB 533×165×66

UB 533×165×66 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 533×165×66 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 44.35 lb/ft 66.00 kg/m
Depth, d 20.67 in 525.00 mm
Flange width, bf 6.50 in 165.00 mm
tw 0.350 in 8.900 mm
tf 0.449 in 11.400 mm
Area 12.99 in² 8,380.00 mm²
Ix 843.28 in⁴ 351,000,000 mm⁴
Iy 20.59 in⁴ 8,570,000 mm⁴
Sx 81.77 in³ 1,340,000 mm³
Sy 6.35 in³ 104,000.00 mm³
Zx 95.20 in³ 1,560,000 mm³
Zy 10.13 in³ 166,000.00 mm³
rx 8.07 in 205.00 mm
ry 1.26 in 32.00 mm
J 0.77 in⁴ 322,000.00 mm⁴
Cw 2,096.55 in⁶ 563,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UB 533×165×66.

Lighter in Universal beams

UB 406×178×60

Weight
60.1 kg/m (-8.9%)
Depth
406.4 mm (-23%)
Ix
216,000,000 mm⁴ (-38%)

Heavier in Universal beams

UB 356×171×67

Weight
67.1 kg/m (+1.7%)
Depth
363.4 mm (-31%)
Ix
195,000,000 mm⁴ (-44%)

Closest Iₓ in Universal beams

UB 457×152×82

Weight
82.1 kg/m (+24%)
Depth
465.8 mm (-11%)
Ix
366,000,000 mm⁴ (+4.3%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology