C – standard channels

C230x19.9

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 = 61.7d = 229tf = 10.5tf = 10.5tw = 5.92tw = 5.92
Cross-section, to scaledimensions in mm

Dimensions

Depthd
229mm
Flange widthbf
61.7mm
Web thicknesstw
5.92mm
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
19.9kg/m
Cross-sectional areaA
2,540mm²

Strong axis x–x

Moment of inertiaIx
19.910⁶ mm⁴
Elastic section modulusSx
17410³ mm³
Plastic section modulusZx
20610³ mm³
Radius of gyrationrx
88.4mm

Weak axis y–y

Moment of inertiaIy
0.72810⁶ mm⁴
Elastic section modulusSy
15.610³ mm³
Plastic section modulusZy
31.810³ mm³
Radius of gyrationry
16.9mm

Torsion and stability

Torsional constantJ
69.910³ mm⁴
Warping constantCw
7.5710⁹ mm⁶
Effective radius of gyrationrts
20.7mm
Polar radius (shear center)r̄o
96.3mm
Flexural constantH
0.875
Shear centereo
18.8mm

Centers

Centroidx̄
15.3mm
Plastic neutral axisxp
5.56mm

Slenderness ratios

Web slendernessh/tw
31.1
Wall slendernessb/t
5.88

Equivalents in other standards