Steel Beam Sizes / UK / RHS / RHS 450×250×8.8

RHS 450×250×8.8 Steel Beam Dimensions and Properties

UK Rectangular hollow sections · v2023.11

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Diagram, properties emphasis, and nearby alternatives use the selected unit system.

Units

Section diagram

RHS 450×250×8.8 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 62.90 lb/ft 93.60 kg/m
Height 17.72 in 450.00 mm
Width 9.84 in 250.00 mm
t 0.346 in 8.800 mm
Area 18.45 in² 11,900.00 mm²
Ix 788.02 in⁴ 328,000,000 mm⁴
Iy 317.13 in⁴ 132,000,000 mm⁴
Sx 89.09 in³ 1,460,000 mm³
Sy 64.69 in³ 1,060,000 mm³
Zx 108.01 in³ 1,770,000 mm³
Zy 72.01 in³ 1,180,000 mm³
rx 6.54 in 166.00 mm
ry 4.13 in 105.00 mm
J 711.14 in⁴ 296,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 450×250×8.8.

Lighter in Rectangular hollow sections

RHS 300×200×12.5

Weight
91.9 kg/m (-1.8%)
Depth
300.0 mm (-33%)
Ix
143,000,000 mm⁴ (-56%)

Heavier in Rectangular hollow sections

RHS 500×300×8

Weight
97.9 kg/m (+4.6%)
Depth
500.0 mm (+11%)
Ix
437,000,000 mm⁴ (+33%)

Closest Iₓ in Rectangular hollow sections

RHS 450×150×12.5

Weight
112.0 kg/m (+20%)
Depth
450.0 mm (0.0%)
Ix
331,000,000 mm⁴ (+0.9%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology