MC shapes (miscellaneous channels)

MC18X45.8 MC460X68.2

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 = 4d = 18tf = 0.625tf = 0.625tw = 0.5tw = 0.5
Cross-section, to scaledimensions in inches

Dimensions

Depthd
18in
Flange widthbf
4in
Web thicknesstw
0.5in
Flange thicknesstf
0.625in
Distance k (design)kdes
1.44in
Distance k (detailing)kdet
1.438in
Web clear depthT
15.13in
Distance between flange centroidsho
17.4in

Mass and area

Mass per lengthm
45.8lb/ft
Cross-sectional areaA
13.5in²

Strong axis x–x

Moment of inertiaIx
578in⁴
Elastic section modulusSx
64.2in³
Plastic section modulusZx
79.2in³
Radius of gyrationrx
6.55in

Weak axis y–y

Moment of inertiaIy
14.9in⁴
Elastic section modulusSy
4.77in³
Plastic section modulusZy
9.14in³
Radius of gyrationry
1.05in

Torsion and stability

Torsional constantJ
1.45in⁴
Warping constantCw
897in⁶
Effective radius of gyrationrts
1.34in
Polar radius (shear center)r̄o
6.87in
Flexural constantH
0.933
Shear centereo
0.909in

Centers

Centroidx̄
0.866in
Plastic neutral axisxp
0.374in

Slenderness ratios

Web slendernessh/tw
30.2
Wall slendernessb/t
6.4

Equivalents in other standards