UB – universal beams

406x140x53

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 = 143.3d = 406.6tf = 12.9tf = 12.9tw = 7.9tw = 7.9
Cross-section, to scaledimensions in mm

Dimensions

Depthd
406.6mm
Flange widthbf
143.3mm
Web thicknesstw
7.9mm
Flange thicknesstf
12.9mm
Root radiusr
10.2mm

Mass and area

Mass per lengthm
53.34kg/m
Cross-sectional areaA
6,795mm²
Outside perimeterP
1,353mm

Strong axis x–x

Moment of inertiaIx
182.810⁶ mm⁴
Elastic section modulusSx
899.310³ mm³
Plastic section modulusZx
1,03110³ mm³
Radius of gyrationrx
164mm

Weak axis y–y

Moment of inertiaIy
6.34610⁶ mm⁴
Elastic section modulusSy
88.5710³ mm³
Plastic section modulusZy
138.910³ mm³
Radius of gyrationry
30.56mm

Torsion and stability

Torsional constantJ
291.110³ mm⁴
Warping constantCw
245.210⁹ mm⁶

Equivalents in other standards