AA standard I-beams

I 6 x 4.69

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 = 4d = 6tf = 0.35tf = 0.35tw = 0.21tw = 0.21
Cross-section, to scaledimensions in inches

Dimensions

Depthd
6in
Flange widthbf
4in
Web thicknesstw
0.21in
Flange thicknesstf
0.35in
Root radiusr
0.3in

Mass and area

Mass per lengthm
4.671lb/ft
Cross-sectional areaA
3.99in²
Published area (standard)A pub.
3.99in²
Outside perimeterP
27.06in

Strong axis x–x

Moment of inertiaIx
25.5in⁴
Elastic section modulusSx
8.498in³
Plastic section modulusZx
9.584in³
Radius of gyrationrx
2.528in

Weak axis y–y

Moment of inertiaIy
3.74in⁴
Elastic section modulusSy
1.87in³
Plastic section modulusZy
2.872in³
Radius of gyrationry
0.9681in

Torsion and stability

Torsional constantJ
0.1451in⁴
Warping constantCw
29.79in⁶

Equivalents in other standards