PFC – parallel-flange channels

180x90x26

Standard: BS 4-1:2005Source: Primary geometry (h, b, tw, tf, r) — calculated properties (exact engine)
xybf = 90d = 180tf = 12.5tf = 12.5tw = 6.5tw = 6.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
180mm
Flange widthbf
90mm
Web thicknesstw
6.5mm
Flange thicknesstf
12.5mm
Root radiusr
12mm

Mass and area

Mass per lengthm
26.06kg/m
Cross-sectional areaA
3,319mm²
Outside perimeterP
696.7mm

Strong axis x–x

Moment of inertiaIx
18.1710⁶ mm⁴
Elastic section modulusSx
201.910³ mm³
Plastic section modulusZx
232.110³ mm³
Radius of gyrationrx
74mm

Weak axis y–y

Moment of inertiaIy
2.76710⁶ mm⁴
Elastic section modulusSy
47.4410³ mm³
Plastic section modulusZy
83.4710³ mm³
Radius of gyrationry
28.87mm

Torsion and stability

Torsional constantJ
133.110³ mm⁴

Centers

Centroidx̄
31.66mm

Equivalents in other standards