UB – universal beams

310UB32.0

Standard: AS/NZS 3679.1Source: InfraBuild dimensions, Hot Rolled & Structural Steel Products (ed. 9) — calculated properties
Published area (Ag) shown as a check: difference < 1.5% on every section.
xybf = 149d = 298tf = 8tf = 8tw = 5.5tw = 5.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
298mm
Flange widthbf
149mm
Web thicknesstw
5.5mm
Flange thicknesstf
8mm
Root radiusr
13mm

Mass and area

Mass per lengthm
32.03kg/m
Cross-sectional areaA
4,080mm²
Published area (standard)A pub.
4,080mm²
Outside perimeterP
1,159mm

Strong axis x–x

Moment of inertiaIx
63.1810⁶ mm⁴
Elastic section modulusSx
42410³ mm³
Plastic section modulusZx
475.110³ mm³
Radius of gyrationrx
124.4mm

Weak axis y–y

Moment of inertiaIy
4.4210⁶ mm⁴
Elastic section modulusSy
59.3310³ mm³
Plastic section modulusZy
91.7610³ mm³
Radius of gyrationry
32.91mm

Torsion and stability

Torsional constantJ
87.9210³ mm⁴
Warping constantCw
92.7310⁹ mm⁶

Equivalents in other standards