C – standard channels

C180x14.6

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 = 53.1d = 178tf = 9.3tf = 9.3tw = 5.33tw = 5.33
Cross-section, to scaledimensions in mm

Dimensions

Depthd
178mm
Flange widthbf
53.1mm
Web thicknesstw
5.33mm
Flange thicknesstf
9.3mm
Distance k (design)kdes
22.2mm
Distance k (detailing)kdet
22.2mm
Web clear depthT
133mm
Distance between flange centroidsho
168mm

Mass and area

Mass per lengthm
14.6kg/m
Cross-sectional areaA
1,850mm²

Strong axis x–x

Moment of inertiaIx
8.8210⁶ mm⁴
Elastic section modulusSx
99.510³ mm³
Plastic section modulusZx
11810³ mm³
Radius of gyrationrx
69.1mm

Weak axis y–y

Moment of inertiaIy
0.39810⁶ mm⁴
Elastic section modulusSy
10.110³ mm³
Plastic section modulusZy
20.610³ mm³
Radius of gyrationry
14.7mm

Torsion and stability

Torsional constantJ
41.510³ mm⁴
Warping constantCw
2.4610⁹ mm⁶
Effective radius of gyrationrts
17.7mm
Polar radius (shear center)r̄o
76.7mm
Flexural constantH
0.845
Shear centereo
16.4mm

Centers

Centroidx̄
13.7mm
Plastic neutral axisxp
5.21mm

Slenderness ratios

Web slendernessh/tw
25.8
Wall slendernessb/t
5.71

Equivalents in other standards