C shapes (standard channels)

C10X30 C250X45

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 = 3.03d = 10tf = 0.436tf = 0.436tw = 0.673tw = 0.673
Cross-section, to scaledimensions in inches

Dimensions

Depthd
10in
Flange widthbf
3.03in
Web thicknesstw
0.673in
Flange thicknesstf
0.436in
Distance k (design)kdes
1in
Distance k (detailing)kdet
1.063in
Web clear depthT
8in
Distance between flange centroidsho
9.56in

Mass and area

Mass per lengthm
30lb/ft
Cross-sectional areaA
8.81in²

Strong axis x–x

Moment of inertiaIx
103in⁴
Elastic section modulusSx
20.7in³
Plastic section modulusZx
26.7in³
Radius of gyrationrx
3.43in

Weak axis y–y

Moment of inertiaIy
3.93in⁴
Elastic section modulusSy
1.65in³
Plastic section modulusZy
3.78in³
Radius of gyrationry
0.668in

Torsion and stability

Torsional constantJ
1.22in⁴
Warping constantCw
79.5in⁶
Effective radius of gyrationrts
0.924in
Polar radius (shear center)r̄o
3.63in
Flexural constantH
0.921
Shear centereo
0.368in

Centers

Centroidx̄
0.649in
Plastic neutral axisxp
0.441in

Slenderness ratios

Web slendernessh/tw
12.1
Wall slendernessb/t
6.95

Equivalents in other standards