MC – miscellaneous channels

MC100x20.5

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 = 63.5d = 102tf = 12.7tf = 12.7tw = 12.7tw = 12.7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
102mm
Flange widthbf
63.5mm
Web thicknesstw
12.7mm
Flange thicknesstf
12.7mm
Distance k (design)kdes
25.4mm
Distance k (detailing)kdet
25.4mm
Web clear depthT
50.8mm
Distance between flange centroidsho
88.9mm

Mass and area

Mass per lengthm
20.5kg/m
Cross-sectional areaA
2,600mm²

Strong axis x–x

Moment of inertiaIx
3.6810⁶ mm⁴
Elastic section modulusSx
72.610³ mm³
Plastic section modulusZx
90.610³ mm³
Radius of gyrationrx
37.6mm

Weak axis y–y

Moment of inertiaIy
0.88710⁶ mm⁴
Elastic section modulusSy
21.110³ mm³
Plastic section modulusZy
39.310³ mm³
Radius of gyrationry
18.5mm

Torsion and stability

Torsional constantJ
15510³ mm⁴
Warping constantCw
1.310⁹ mm⁶
Effective radius of gyrationrts
21.6mm
Polar radius (shear center)r̄o
56.6mm
Flexural constantH
0.55
Shear centereo
16.3mm

Centers

Centroidx̄
21.6mm
Plastic neutral axisxp
12.9mm

Slenderness ratios

Web slendernessh/tw
4.05
Wall slendernessb/t
5

Equivalents in other standards