PFC – parallel-flange channels
180PFC20.9
Same sections as Australia (joint AS/NZS standard). Published area (Ag) shown as a check: difference < 1.5% on every section.
Dimensions
- Depthd
- 180mm
- Flange widthbf
- 75mm
- Web thicknesstw
- 6mm
- Flange thicknesstf
- 11mm
- Root radiusr
- 12mm
Mass and area
- Mass per lengthm
- 20.88kg/m
- Cross-sectional areaA
- 2,660mm²
- Published area (standard)A pub.
- 2,660mm²
- Outside perimeterP
- 637.7mm
Strong axis x–x
- Moment of inertiaIx
- 14.1310⁶ mm⁴
- Elastic section modulusSx
- 15710³ mm³
- Plastic section modulusZx
- 181.610³ mm³
- Radius of gyrationrx
- 72.89mm
Weak axis y–y
- Moment of inertiaIy
- 1.50910⁶ mm⁴
- Elastic section modulusSy
- 29.910³ mm³
- Plastic section modulusZy
- 53.8410³ mm³
- Radius of gyrationry
- 23.82mm
Torsion and stability
- Torsional constantJ
- 81.4110³ mm⁴
Centers
- Centroidx̄
- 24.53mm