Steel Beam Sizes / UK / RHS / RHS 500×200×12.5

RHS 500×200×12.5 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 500×200×12.5 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 88.03 lb/ft 131.00 kg/m
Height 19.69 in 500.00 mm
Width 7.87 in 200.00 mm
t 0.492 in 12.500 mm
Area 25.89 in² 16,700.00 mm²
Ix 1,225.28 in⁴ 510,000,000 mm⁴
Iy 285.90 in⁴ 119,000,000 mm⁴
Sx 124.49 in³ 2,040,000 mm³
Sy 72.62 in³ 1,190,000 mm³
Zx 158.05 in³ 2,590,000 mm³
Zy 82.38 in³ 1,350,000 mm³
rx 6.89 in 175.00 mm
ry 3.33 in 84.50 mm
J 756.79 in⁴ 315,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus RHS 500×200×12.5.

Lighter in Rectangular hollow sections

RHS 300×250×16

Weight
128.0 kg/m (-2.3%)
Depth
300.0 mm (-40%)
Ix
206,000,000 mm⁴ (-60%)

Heavier in Rectangular hollow sections

RHS 500×300×11

Weight
133.0 kg/m (+1.5%)
Depth
500.0 mm (0.0%)
Ix
586,000,000 mm⁴ (+15%)

Closest Iₓ in Rectangular hollow sections

RHS 450×250×14.2

Weight
148.0 kg/m (+13%)
Depth
450.0 mm (-10%)
Ix
503,000,000 mm⁴ (-1.4%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Hot-finished hollow sections · Methodology