UB – universal beams

610x305x238

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 = 311.4d = 635.8tf = 31.4tf = 31.4tw = 18.4tw = 18.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
635.8mm
Flange widthbf
311.4mm
Web thicknesstw
18.4mm
Flange thicknesstf
31.4mm
Root radiusr
16.5mm

Mass and area

Mass per lengthm
238.1kg/m
Cross-sectional areaA
30,333mm²
Outside perimeterP
2,452mm

Strong axis x–x

Moment of inertiaIx
2,09510⁶ mm⁴
Elastic section modulusSx
6,58910³ mm³
Plastic section modulusZx
7,48610³ mm³
Radius of gyrationrx
262.8mm

Weak axis y–y

Moment of inertiaIy
158.410⁶ mm⁴
Elastic section modulusSy
1,01710³ mm³
Plastic section modulusZy
1,57410³ mm³
Radius of gyrationry
72.26mm

Torsion and stability

Torsional constantJ
7,90610³ mm⁴
Warping constantCw
14,43210⁹ mm⁶

Equivalents in other standards