PFC – parallel-flange channels

125x65x15

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 = 65d = 125tf = 9.5tf = 9.5tw = 5.5tw = 5.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
125mm
Flange widthbf
65mm
Web thicknesstw
5.5mm
Flange thicknesstf
9.5mm
Root radiusr
12mm

Mass and area

Mass per lengthm
14.76kg/m
Cross-sectional areaA
1,880mm²
Outside perimeterP
488.7mm

Strong axis x–x

Moment of inertiaIx
4.83110⁶ mm⁴
Elastic section modulusSx
77.2910³ mm³
Plastic section modulusZx
89.8810³ mm³
Radius of gyrationrx
50.69mm

Weak axis y–y

Moment of inertiaIy
0.800210⁶ mm⁴
Elastic section modulusSy
18.8210³ mm³
Plastic section modulusZy
33.4510³ mm³
Radius of gyrationry
20.63mm

Torsion and stability

Torsional constantJ
47.2210³ mm⁴

Centers

Centroidx̄
22.47mm

Equivalents in other standards