AA standard I-beams

I 8 x 7.02

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 = 5d = 8tf = 0.41tf = 0.41tw = 0.25tw = 0.25
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Flange widthbf
5in
Web thicknesstw
0.25in
Flange thicknesstf
0.41in
Root radiusr
0.3in

Mass and area

Mass per lengthm
6.991lb/ft
Cross-sectional areaA
5.972in²
Published area (standard)A pub.
5.972in²
Outside perimeterP
34.98in

Strong axis x–x

Moment of inertiaIx
67.78in⁴
Elastic section modulusSx
16.94in³
Plastic section modulusZx
19.05in³
Radius of gyrationrx
3.369in

Weak axis y–y

Moment of inertiaIy
8.554in⁴
Elastic section modulusSy
3.422in³
Plastic section modulusZy
5.252in³
Radius of gyrationry
1.197in

Torsion and stability

Torsional constantJ
0.2873in⁴
Warping constantCw
123in⁶

Equivalents in other standards