C – standard channels

C230x30

Standard: ASTM A6/A6M (désignations métriques)Source: SI values from the AISC v16.0 database (ASTM A6 shapes common to Canada)
ASTM A6 rolled shapes are the same in Canada; the CISC list may differ slightly (availability).
xybf = 67.3d = 229tf = 10.5tf = 10.5tw = 11.4tw = 11.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
229mm
Flange widthbf
67.3mm
Web thicknesstw
11.4mm
Flange thicknesstf
10.5mm
Distance k (design)kdes
25.4mm
Distance k (detailing)kdet
25.4mm
Web clear depthT
178mm
Distance between flange centroidsho
218mm

Mass and area

Mass per lengthm
30kg/m
Cross-sectional areaA
3,790mm²

Strong axis x–x

Moment of inertiaIx
25.310⁶ mm⁴
Elastic section modulusSx
22110³ mm³
Plastic section modulusZx
27710³ mm³
Radius of gyrationrx
81.8mm

Weak axis y–y

Moment of inertiaIy
110⁶ mm⁴
Elastic section modulusSy
19.210³ mm³
Plastic section modulusZy
40.310³ mm³
Radius of gyrationry
16.3mm

Torsion and stability

Torsional constantJ
17810³ mm⁴
Warping constantCw
10.610⁹ mm⁶
Effective radius of gyrationrts
21.6mm
Polar radius (shear center)r̄o
87.9mm
Flexural constantH
0.899
Shear centereo
13.1mm

Centers

Centroidx̄
14.8mm
Plastic neutral axisxp
8.28mm

Slenderness ratios

Web slendernessh/tw
16.2
Wall slendernessb/t
6.42

Equivalents in other standards