Steel Beam Sizes / UK / UB Tees / T 171×178×23

T 171×178×23 Steel Beam Dimensions and Properties

UK Tees split from universal beams · v2023.11

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

Units

Section diagram

T 171×178×23 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 15.12 lb/ft 22.50 kg/m
Depth, d 6.91 in 175.60 mm
Flange width, bf 6.74 in 171.10 mm
tw 0.276 in 7.000 mm
tf 0.382 in 9.700 mm
Area 4.45 in² 2,870.00 mm²
Ix 19.17 in⁴ 7,980,000 mm⁴
Iy 9.75 in⁴ 4,060,000 mm⁴
Sx 3.61 in³ 59,100.00 mm³
Sy 2.89 in³ 47,400.00 mm³
Zx 6.35 in³ 104,000.00 mm³
Zy 4.47 in³ 73,300.00 mm³
rx 2.08 in 52.80 mm
ry 1.48 in 37.60 mm
J 0.19 in⁴ 79,000.00 mm⁴
Cw 0.29 in⁶ 79,200,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus T 171×178×23.

Lighter in Tees split from universal beams

T 146×127×22

Weight
21.5 kg/m (-4.4%)
Depth
129.7 mm (-26%)
Ix
3,430,000 mm⁴ (-57%)

Heavier in Tees split from universal beams

T 140×203×23

Weight
23.0 kg/m (+2.2%)
Depth
201.5 mm (+15%)
Ix
11,200,000 mm⁴ (+40%)

Closest Iₓ in Tees split from universal beams

T 127×178×20

Weight
19.5 kg/m (-13%)
Depth
176.6 mm (+0.6%)
Ix
7,280,000 mm⁴ (-8.8%)
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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · v2023.11 · Methodology