UB – universal beams

406x140x46

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
xybf = 142.2d = 403.2tf = 11.2tf = 11.2tw = 6.8tw = 6.8
Cross-section, to scaledimensions in mm

Dimensions

Depthd
403.2mm
Flange widthbf
142.2mm
Web thicknesstw
6.8mm
Flange thicknesstf
11.2mm
Root radiusr
10.2mm

Mass and area

Mass per lengthm
46.03kg/m
Cross-sectional areaA
5,864mm²
Outside perimeterP
1,344mm

Strong axis x–x

Moment of inertiaIx
156.910⁶ mm⁴
Elastic section modulusSx
77810³ mm³
Plastic section modulusZx
887.610³ mm³
Radius of gyrationrx
163.5mm

Weak axis y–y

Moment of inertiaIy
5.38110⁶ mm⁴
Elastic section modulusSy
75.6810³ mm³
Plastic section modulusZy
118.110³ mm³
Radius of gyrationry
30.29mm

Torsion and stability

Torsional constantJ
190.710³ mm⁴
Warping constantCw
206.210⁹ mm⁶

Equivalents in other standards