C shapes (standard channels)

C9X15 C230X22

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 = 2.49d = 9tf = 0.413tf = 0.413tw = 0.285tw = 0.285
Cross-section, to scaledimensions in inches

Dimensions

Depthd
9in
Flange widthbf
2.49in
Web thicknesstw
0.285in
Flange thicknesstf
0.413in
Distance k (design)kdes
1in
Distance k (detailing)kdet
1in
Web clear depthT
7in
Distance between flange centroidsho
8.59in

Mass and area

Mass per lengthm
15lb/ft
Cross-sectional areaA
4.4in²

Strong axis x–x

Moment of inertiaIx
51in⁴
Elastic section modulusSx
11.3in³
Plastic section modulusZx
13.6in³
Radius of gyrationrx
3.4in

Weak axis y–y

Moment of inertiaIy
1.91in⁴
Elastic section modulusSy
1.01in³
Plastic section modulusZy
2.04in³
Radius of gyrationry
0.659in

Torsion and stability

Torsional constantJ
0.208in⁴
Warping constantCw
31in⁶
Effective radius of gyrationrts
0.825in
Polar radius (shear center)r̄o
3.69in
Flexural constantH
0.882
Shear centereo
0.681in

Centers

Centroidx̄
0.586in
Plastic neutral axisxp
0.245in

Slenderness ratios

Web slendernessh/tw
25.4
Wall slendernessb/t
6.03

Equivalents in other standards