UB – universal beams

180UB22.2

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 = 90d = 179tf = 10tf = 10tw = 6tw = 6
Cross-section, to scaledimensions in mm

Dimensions

Depthd
179mm
Flange widthbf
90mm
Web thicknesstw
6mm
Flange thicknesstf
10mm
Root radiusr
8.9mm

Mass and area

Mass per lengthm
22.15kg/m
Cross-sectional areaA
2,822mm²
Published area (standard)A pub.
2,820mm²
Outside perimeterP
690.7mm

Strong axis x–x

Moment of inertiaIx
15.2910⁶ mm⁴
Elastic section modulusSx
170.810³ mm³
Plastic section modulusZx
195.310³ mm³
Radius of gyrationrx
73.6mm

Weak axis y–y

Moment of inertiaIy
1.2210⁶ mm⁴
Elastic section modulusSy
27.1110³ mm³
Plastic section modulusZy
42.2710³ mm³
Radius of gyrationry
20.79mm

Torsion and stability

Torsional constantJ
81.8210³ mm⁴
Warping constantCw
8.67510⁹ mm⁶

Equivalents in other standards