UB – universal beams

406x178x60

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 = 177.9d = 406.4tf = 12.8tf = 12.8tw = 7.9tw = 7.9
Cross-section, to scaledimensions in mm

Dimensions

Depthd
406.4mm
Flange widthbf
177.9mm
Web thicknesstw
7.9mm
Flange thicknesstf
12.8mm
Root radiusr
10.2mm

Mass and area

Mass per lengthm
60.07kg/m
Cross-sectional areaA
7,652mm²
Outside perimeterP
1,491mm

Strong axis x–x

Moment of inertiaIx
21610⁶ mm⁴
Elastic section modulusSx
1,06310³ mm³
Plastic section modulusZx
1,19910³ mm³
Radius of gyrationrx
168mm

Weak axis y–y

Moment of inertiaIy
12.0310⁶ mm⁴
Elastic section modulusSy
135.310³ mm³
Plastic section modulusZy
20910³ mm³
Radius of gyrationry
39.65mm

Torsion and stability

Torsional constantJ
334.910³ mm⁴
Warping constantCw
465.210⁹ mm⁶

Equivalents in other standards