UB – universal beams

356x127x33

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
xybf = 125.4d = 349tf = 8.5tf = 8.5tw = 6tw = 6
Cross-section, to scaledimensions in mm

Dimensions

Depthd
349mm
Flange widthbf
125.4mm
Web thicknesstw
6mm
Flange thicknesstf
8.5mm
Root radiusr
10.2mm

Mass and area

Mass per lengthm
33.07kg/m
Cross-sectional areaA
4,213mm²
Outside perimeterP
1,170mm

Strong axis x–x

Moment of inertiaIx
82.4910⁶ mm⁴
Elastic section modulusSx
472.710³ mm³
Plastic section modulusZx
542.910³ mm³
Radius of gyrationrx
139.9mm

Weak axis y–y

Moment of inertiaIy
2.80210⁶ mm⁴
Elastic section modulusSy
44.6910³ mm³
Plastic section modulusZy
70.2910³ mm³
Radius of gyrationry
25.79mm

Torsion and stability

Torsional constantJ
89.7210³ mm⁴
Warping constantCw
80.9710⁹ mm⁶

Equivalents in other standards