PFC – parallel-flange channels

250PFC35.5

Standard: AS/NZS 3679.1Source: InfraBuild dimensions, Hot Rolled & Structural Steel Products (ed. 9) — calculated properties
Same sections as Australia (joint AS/NZS standard). Published area (Ag) shown as a check: difference < 1.5% on every section.
xybf = 90d = 250tf = 15tf = 15tw = 8tw = 8
Cross-section, to scaledimensions in mm

Dimensions

Depthd
250mm
Flange widthbf
90mm
Web thicknesstw
8mm
Flange thicknesstf
15mm
Root radiusr
12mm

Mass and area

Mass per lengthm
35.5kg/m
Cross-sectional areaA
4,522mm²
Published area (standard)A pub.
4,520mm²
Outside perimeterP
833.7mm

Strong axis x–x

Moment of inertiaIx
45.1410⁶ mm⁴
Elastic section modulusSx
361.110³ mm³
Plastic section modulusZx
420.710³ mm³
Radius of gyrationrx
99.91mm

Weak axis y–y

Moment of inertiaIy
3.64310⁶ mm⁴
Elastic section modulusSy
59.3110³ mm³
Plastic section modulusZy
107.410³ mm³
Radius of gyrationry
28.39mm

Torsion and stability

Torsional constantJ
237.710³ mm⁴

Centers

Centroidx̄
28.57mm

Equivalents in other standards