UB – universal beams

305x165x40

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
Range derived from BS 4-1; to be confirmed with the SAISC Red Book.
xybf = 165d = 303.4tf = 10.2tf = 10.2tw = 6tw = 6
Cross-section, to scaledimensions in mm

Dimensions

Depthd
303.4mm
Flange widthbf
165mm
Web thicknesstw
6mm
Flange thicknesstf
10.2mm
Root radiusr
8.9mm

Mass and area

Mass per lengthm
40.29kg/m
Cross-sectional areaA
5,132mm²
Outside perimeterP
1,240mm

Strong axis x–x

Moment of inertiaIx
85.0310⁶ mm⁴
Elastic section modulusSx
560.510³ mm³
Plastic section modulusZx
623.110³ mm³
Radius of gyrationrx
128.7mm

Weak axis y–y

Moment of inertiaIy
7.64410⁶ mm⁴
Elastic section modulusSy
92.6510³ mm³
Plastic section modulusZy
141.710³ mm³
Radius of gyrationry
38.59mm

Torsion and stability

Torsional constantJ
147.410³ mm⁴
Warping constantCw
164.110⁹ mm⁶

Equivalents in other standards