UB – universal beams

914x419x343

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 = 418.5d = 911.8tf = 32tf = 32tw = 19.4tw = 19.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
911.8mm
Flange widthbf
418.5mm
Web thicknesstw
19.4mm
Flange thicknesstf
32mm
Root radiusr
24.1mm

Mass and area

Mass per lengthm
343.3kg/m
Cross-sectional areaA
43,730mm²
Outside perimeterP
3,417mm

Strong axis x–x

Moment of inertiaIx
6,25810⁶ mm⁴
Elastic section modulusSx
13,72610³ mm³
Plastic section modulusZx
15,47710³ mm³
Radius of gyrationrx
378.3mm

Weak axis y–y

Moment of inertiaIy
391.610⁶ mm⁴
Elastic section modulusSy
1,87110³ mm³
Plastic section modulusZy
2,89010³ mm³
Radius of gyrationry
94.63mm

Torsion and stability

Torsional constantJ
11,98710³ mm⁴
Warping constantCw
75,64710⁹ mm⁶

Equivalents in other standards