C – standard channels

C310x37

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 = 77.5d = 305tf = 12.7tf = 12.7tw = 9.83tw = 9.83
Cross-section, to scaledimensions in mm

Dimensions

Depthd
305mm
Flange widthbf
77.5mm
Web thicknesstw
9.83mm
Flange thicknesstf
12.7mm
Distance k (design)kdes
28.7mm
Distance k (detailing)kdet
28.6mm
Web clear depthT
248mm
Distance between flange centroidsho
292mm

Mass and area

Mass per lengthm
37kg/m
Cross-sectional areaA
4,740mm²

Strong axis x–x

Moment of inertiaIx
59.910⁶ mm⁴
Elastic section modulusSx
39310³ mm³
Plastic section modulusZx
48210³ mm³
Radius of gyrationrx
113mm

Weak axis y–y

Moment of inertiaIy
1.8510⁶ mm⁴
Elastic section modulusSy
30.610³ mm³
Plastic section modulusZy
62.610³ mm³
Radius of gyrationry
19.8mm

Torsion and stability

Torsional constantJ
22410³ mm⁴
Warping constantCw
34.910⁹ mm⁶
Effective radius of gyrationrts
25.4mm
Polar radius (shear center)r̄o
120mm
Flexural constantH
0.909
Shear centereo
18.9mm

Centers

Centroidx̄
17.1mm
Plastic neutral axisxp
7.77mm

Slenderness ratios

Web slendernessh/tw
25.6
Wall slendernessb/t
6.09

Equivalents in other standards