Steel Beam Sizes / UK / Universal Beams / UB 920×420×970

UB 920×420×970 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 920×420×970 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 651.81 lb/ft 970.00 kg/m
Depth, d 41.06 in 1,043.00 mm
Flange width, bf 17.56 in 446.00 mm
tw 1.969 in 50.000 mm
tf 3.539 in 89.900 mm
Area 191.74 in² 123,700.00 mm²
Ix 50,452.70 in⁴ 21,000,000,000 mm⁴
Iy 3,219.36 in⁴ 1,340,000,000 mm⁴
Sx 2,459.26 in³ 40,300,000 mm³
Sy 366.14 in³ 6,000,000 mm³
Zx 2,910.83 in³ 47,700,000 mm³
Zy 579.12 in³ 9,490,000 mm³
rx 16.22 in 412.00 mm
ry 4.09 in 104.00 mm
J 583.81 in⁴ 243,000,000 mm⁴
Cw 1,132,064.79 in⁶ 304,000,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UB 920×420×970.

Lighter in Universal beams

UB 1000×400×883

Weight
883.0 kg/m (-9.0%)
Depth
1,092.0 mm (+4.7%)
Ix
20,960,000,000 mm⁴ (-0.2%)

Heavier in Universal beams

UB 1000×400×976

Weight
976.0 kg/m (+0.6%)
Depth
1,108.0 mm (+6.2%)
Ix
23,490,000,000 mm⁴ (+12%)

Closest Iₓ in Universal beams

UB 920×420×1077

Weight
1,077.0 kg/m (+11%)
Depth
1,061.0 mm (+1.7%)
Ix
23,770,000,000 mm⁴ (+13%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology