AA standard channels

C 3 x 1.60

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 = 1.75d = 3tf = 0.26tf = 0.26tw = 0.17tw = 0.17
Cross-section, to scaledimensions in inches

Dimensions

Depthd
3in
Flange widthbf
1.75in
Web thicknesstw
0.17in
Flange thicknesstf
0.26in
Root radiusr
0.25in

Mass and area

Mass per lengthm
1.59lb/ft
Cross-sectional areaA
1.358in²
Published area (standard)A pub.
1.36in²
Outside perimeterP
12.45in

Strong axis x–x

Moment of inertiaIx
1.967in⁴
Elastic section modulusSx
1.311in³
Plastic section modulusZx
1.54in³
Radius of gyrationrx
1.203in

Weak axis y–y

Moment of inertiaIy
0.4173in⁴
Elastic section modulusSy
0.3683in³
Plastic section modulusZy
0.6519in³
Radius of gyrationry
0.5543in

Torsion and stability

Torsional constantJ
0.02568in⁴

Centers

Centroidx̄
0.617in

Equivalents in other standards