M shapes

M12X11.8 M310X17.6

Standard: AISC Shapes Database v16.0Source: AISC (aisc.org) — Shapes Database v16.0 (Excel file)
Values published by AISC, in US customary (original) and SI units.
xybf = 3.07d = 12tf = 0.225tf = 0.225tw = 0.177tw = 0.177
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Flange widthbf
3.07in
Web thicknesstw
0.177in
Flange thicknesstf
0.225in
Distance k (design)kdes
0.563in
Distance k (detailing)kdet
0.5625in
Distance k1k1
0.375in
Web clear depthT
10.88in
Distance between flange centroidsho
11.8in

Mass and area

Mass per lengthm
11.8lb/ft
Cross-sectional areaA
3.47in²

Strong axis x–x

Moment of inertiaIx
72.2in⁴
Elastic section modulusSx
12in³
Plastic section modulusZx
14.3in³
Radius of gyrationrx
4.56in

Weak axis y–y

Moment of inertiaIy
1.09in⁴
Elastic section modulusSy
0.709in³
Plastic section modulusZy
1.15in³
Radius of gyrationry
0.559in

Torsion and stability

Torsional constantJ
0.05in⁴
Warping constantCw
37.7in⁶
Effective radius of gyrationrts
0.731in

Slenderness ratios

Flange slendernessbf/2tf
6.81
Web slendernessh/tw
62.5

Equivalents in other standards