PFC – parallel-flange channels

200x90x30

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 = 90d = 200tf = 14tf = 14tw = 7tw = 7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
200mm
Flange widthbf
90mm
Web thicknesstw
7mm
Flange thicknesstf
14mm
Root radiusr
12mm

Mass and area

Mass per lengthm
29.72kg/m
Cross-sectional areaA
3,786mm²
Outside perimeterP
735.7mm

Strong axis x–x

Moment of inertiaIx
25.2310⁶ mm⁴
Elastic section modulusSx
252.310³ mm³
Plastic section modulusZx
291.310³ mm³
Radius of gyrationrx
81.64mm

Weak axis y–y

Moment of inertiaIy
3.13910⁶ mm⁴
Elastic section modulusSy
53.410³ mm³
Plastic section modulusZy
94.5410³ mm³
Radius of gyrationry
28.79mm

Torsion and stability

Torsional constantJ
182.910³ mm⁴

Centers

Centroidx̄
31.23mm

Equivalents in other standards