AA standard I-beams

I 12 x 14.3

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 = 7d = 12tf = 0.62tf = 0.62tw = 0.31tw = 0.31
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Flange widthbf
7in
Web thicknesstw
0.31in
Flange thicknesstf
0.62in
Root radiusr
0.4in

Mass and area

Mass per lengthm
14.23lb/ft
Cross-sectional areaA
12.15in²
Published area (standard)A pub.
12.15in²
Outside perimeterP
50.69in

Strong axis x–x

Moment of inertiaIx
317.3in⁴
Elastic section modulusSx
52.89in³
Plastic section modulusZx
59.09in³
Radius of gyrationrx
5.11in

Weak axis y–y

Moment of inertiaIy
35.48in⁴
Elastic section modulusSy
10.14in³
Plastic section modulusZy
15.48in³
Radius of gyrationry
1.709in

Torsion and stability

Torsional constantJ
1.26in⁴
Warping constantCw
1,148in⁶

Equivalents in other standards