Steel Beam Sizes / UK / Universal Beams / UB 914×305×521

UB 914×305×521 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 914×305×521 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 350.10 lb/ft 521.00 kg/m
Depth, d 38.62 in 981.00 mm
Flange width, bf 12.56 in 319.00 mm
tw 1.299 in 33.000 mm
tf 2.319 in 58.900 mm
Area 102.92 in² 66,400.00 mm²
Ix 23,592.64 in⁴ 9,820,000,000 mm⁴
Iy 771.21 in⁴ 321,000,000 mm⁴
Sx 1,220.47 in³ 20,000,000 mm³
Sy 123.27 in³ 2,020,000 mm³
Zx 1,440.16 in³ 23,600,000 mm³
Zy 197.72 in³ 3,240,000 mm³
rx 15.16 in 385.00 mm
ry 2.74 in 69.60 mm
J 128.29 in⁴ 53,400,000 mm⁴
Cw 252,107.85 in⁶ 67,700,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UB 914×305×521.

Lighter in Universal beams

UB 1100×400×499

Weight
499.0 kg/m (-4.2%)
Depth
1,118.0 mm (+14%)
Ix
13,050,000,000 mm⁴ (+33%)

Heavier in Universal beams

UB 920×420×537

Weight
537.0 kg/m (+3.1%)
Depth
965.0 mm (-1.6%)
Ix
10,660,000,000 mm⁴ (+8.6%)

Closest Iₓ in Universal beams

UB 1000×400×443

Weight
443.0 kg/m (-15%)
Depth
1,012.0 mm (+3.2%)
Ix
9,660,000,000 mm⁴ (-1.6%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology