UB – universal beams

1016x305x393

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 = 303d = 1,016tf = 43.9tf = 43.9tw = 24.4tw = 24.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,016mm
Flange widthbf
303mm
Web thicknesstw
24.4mm
Flange thicknesstf
43.9mm
Root radiusr
30mm

Mass and area

Mass per lengthm
392.7kg/m
Cross-sectional areaA
50,022mm²
Outside perimeterP
3,144mm

Strong axis x–x

Moment of inertiaIx
8,07510⁶ mm⁴
Elastic section modulusSx
15,89710³ mm³
Plastic section modulusZx
18,53710³ mm³
Radius of gyrationrx
401.8mm

Weak axis y–y

Moment of inertiaIy
20510⁶ mm⁴
Elastic section modulusSy
1,35310³ mm³
Plastic section modulusZy
2,16810³ mm³
Radius of gyrationry
64.01mm

Torsion and stability

Torsional constantJ
23,31610³ mm⁴
Warping constantCw
48,07410⁹ mm⁶

Equivalents in other standards