UB – universal beams

305x127x37

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
xybf = 123.4d = 304.4tf = 10.7tf = 10.7tw = 7.1tw = 7.1
Cross-section, to scaledimensions in mm

Dimensions

Depthd
304.4mm
Flange widthbf
123.4mm
Web thicknesstw
7.1mm
Flange thicknesstf
10.7mm
Root radiusr
8.9mm

Mass and area

Mass per lengthm
37.04kg/m
Cross-sectional areaA
4,718mm²
Outside perimeterP
1,073mm

Strong axis x–x

Moment of inertiaIx
71.7110⁶ mm⁴
Elastic section modulusSx
471.110³ mm³
Plastic section modulusZx
539.410³ mm³
Radius of gyrationrx
123.3mm

Weak axis y–y

Moment of inertiaIy
3.36210⁶ mm⁴
Elastic section modulusSy
54.4910³ mm³
Plastic section modulusZy
85.4110³ mm³
Radius of gyrationry
26.69mm

Torsion and stability

Torsional constantJ
149.610³ mm⁴
Warping constantCw
72.2610⁹ mm⁶

Equivalents in other standards