C – standard channels

C75x5.2

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 = 34.8d = 76.2tf = 6.93tf = 6.93tw = 3.35tw = 3.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
76.2mm
Flange widthbf
34.8mm
Web thicknesstw
3.35mm
Flange thicknesstf
6.93mm
Distance k (design)kdes
17.5mm
Distance k (detailing)kdet
17.5mm
Web clear depthT
41.3mm
Distance between flange centroidsho
69.3mm

Mass and area

Mass per lengthm
5.2kg/m
Cross-sectional areaA
703mm²

Strong axis x–x

Moment of inertiaIx
0.65310⁶ mm⁴
Elastic section modulusSx
1710³ mm³
Plastic section modulusZx
20.310³ mm³
Radius of gyrationrx
30.5mm

Weak axis y–y

Moment of inertiaIy
0.070310⁶ mm⁴
Elastic section modulusSy
2.9810³ mm³
Plastic section modulusZy
5.9610³ mm³
Radius of gyrationry
10mm

Torsion and stability

Torsional constantJ
9.4110³ mm⁴
Warping constantCw
0.074110⁹ mm⁶
Effective radius of gyrationrts
11.6mm
Polar radius (shear center)r̄o
39.9mm
Flexural constantH
0.646
Shear centereo
12.5mm

Centers

Centroidx̄
11.3mm
Plastic neutral axisxp
7.52mm

Slenderness ratios

Web slendernessh/tw
13.6
Wall slendernessb/t
5.02

Equivalents in other standards