UB – universal beams

457x191x161

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
Singapore uses BS / BS EN sections; same data as the United Kingdom.
xybf = 199.4d = 492tf = 32tf = 32tw = 18tw = 18
Cross-section, to scaledimensions in mm

Dimensions

Depthd
492mm
Flange widthbf
199.4mm
Web thicknesstw
18mm
Flange thicknesstf
32mm
Root radiusr
10.2mm

Mass and area

Mass per lengthm
161.4kg/m
Cross-sectional areaA
20,555mm²
Outside perimeterP
1,728mm

Strong axis x–x

Moment of inertiaIx
797.810⁶ mm⁴
Elastic section modulusSx
3,24310³ mm³
Plastic section modulusZx
3,77810³ mm³
Radius of gyrationrx
197mm

Weak axis y–y

Moment of inertiaIy
42.510⁶ mm⁴
Elastic section modulusSy
426.310³ mm³
Plastic section modulusZy
671.810³ mm³
Radius of gyrationry
45.47mm

Torsion and stability

Torsional constantJ
5,21010³ mm⁴
Warping constantCw
2,23710⁹ mm⁶

Equivalents in other standards