AA standard channels

C 6 x 4.03

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 = 3.25d = 6tf = 0.35tf = 0.35tw = 0.21tw = 0.21
Cross-section, to scaledimensions in inches

Dimensions

Depthd
6in
Flange widthbf
3.25in
Web thicknesstw
0.21in
Flange thicknesstf
0.35in
Root radiusr
0.3in

Mass and area

Mass per lengthm
4.011lb/ft
Cross-sectional areaA
3.427in²
Published area (standard)A pub.
3.43in²
Outside perimeterP
24.32in

Strong axis x–x

Moment of inertiaIx
21.04in⁴
Elastic section modulusSx
7.014in³
Plastic section modulusZx
8.001in³
Radius of gyrationrx
2.478in

Weak axis y–y

Moment of inertiaIy
3.761in⁴
Elastic section modulusSy
1.762in³
Plastic section modulusZy
3.119in³
Radius of gyrationry
1.048in

Torsion and stability

Torsional constantJ
0.1103in⁴

Centers

Centroidx̄
1.116in

Equivalents in other standards