Steel Beam Sizes / UK / Universal Beams / UB 1000×400×642

UB 1000×400×642 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 1000×400×642 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 431.40 lb/ft 642.00 kg/m
Depth, d 41.26 in 1,048.00 mm
Flange width, bf 16.22 in 412.00 mm
tw 1.339 in 34.000 mm
tf 2.362 in 60.000 mm
Area 126.79 in² 81,800.00 mm²
Ix 34,860.41 in⁴ 14,510,000,000 mm⁴
Iy 1,688.96 in⁴ 703,000,000 mm⁴
Sx 1,690.36 in³ 27,700,000 mm³
Sy 208.09 in³ 3,410,000 mm³
Zx 1,958.86 in³ 32,100,000 mm³
Zy 328.31 in³ 5,380,000 mm³
rx 16.57 in 421.00 mm
ry 3.65 in 92.70 mm
J 177.31 in⁴ 73,800,000 mm⁴
Cw 635,669.28 in⁶ 170,700,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus UB 1000×400×642.

Lighter in Universal beams

UB 1100×400×607

Weight
607.0 kg/m (-5.5%)
Depth
1,138.0 mm (+8.6%)
Ix
16,240,000,000 mm⁴ (+12%)

Heavier in Universal beams

UB 920×420×656

Weight
656.0 kg/m (+2.2%)
Depth
987.0 mm (-5.8%)
Ix
13,350,000,000 mm⁴ (-8.0%)

Closest Iₓ in Universal beams

UB 1100×400×548

Weight
548.0 kg/m (-15%)
Depth
1,128.0 mm (+7.6%)
Ix
14,570,000,000 mm⁴ (+0.4%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology