AA standard channels

C 5 x 3.09

Standard: Aluminum AssociationSource: Aluminum Association standard shape dimensions (as listed by Engineers Edge) — calculated properties
Mass calculated at 2700 kg/m³. Flange toe radius ignored (area difference < 1.5%).
xybf = 2.75d = 5tf = 0.32tf = 0.32tw = 0.19tw = 0.19
Cross-section, to scaledimensions in inches

Dimensions

Depthd
5in
Flange widthbf
2.75in
Web thicknesstw
0.19in
Flange thicknesstf
0.32in
Root radiusr
0.3in

Mass and area

Mass per lengthm
3.075lb/ft
Cross-sectional areaA
2.627in²
Published area (standard)A pub.
2.63in²
Outside perimeterP
20.36in

Strong axis x–x

Moment of inertiaIx
11.14in⁴
Elastic section modulusSx
4.455in³
Plastic section modulusZx
5.103in³
Radius of gyrationrx
2.059in

Weak axis y–y

Moment of inertiaIy
2.054in⁴
Elastic section modulusSy
1.144in³
Plastic section modulusZy
2.02in³
Radius of gyrationry
0.8842in

Torsion and stability

Torsional constantJ
0.0715in⁴

Centers

Centroidx̄
0.9549in

Equivalents in other standards