MC – miscellaneous channels

MC200x27.8

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 = 75.7d = 203tf = 12.7tf = 12.7tw = 8.97tw = 8.97
Cross-section, to scaledimensions in mm

Dimensions

Depthd
203mm
Flange widthbf
75.7mm
Web thicknesstw
8.97mm
Flange thicknesstf
12.7mm
Distance k (design)kdes
28.7mm
Distance k (detailing)kdet
28.6mm
Web clear depthT
146mm
Distance between flange centroidsho
190mm

Mass and area

Mass per lengthm
27.8kg/m
Cross-sectional areaA
3,550mm²

Strong axis x–x

Moment of inertiaIx
21.810⁶ mm⁴
Elastic section modulusSx
21510³ mm³
Plastic section modulusZx
25610³ mm³
Radius of gyrationrx
78.5mm

Weak axis y–y

Moment of inertiaIy
1.7310⁶ mm⁴
Elastic section modulusSy
3210³ mm³
Plastic section modulusZy
6110³ mm³
Radius of gyrationry
22mm

Torsion and stability

Torsional constantJ
15810³ mm⁴
Warping constantCw
12.110⁹ mm⁶
Effective radius of gyrationrts
25.9mm
Polar radius (shear center)r̄o
92.7mm
Flexural constantH
0.773
Shear centereo
22.6mm

Centers

Centroidx̄
21.6mm
Plastic neutral axisxp
8.74mm

Slenderness ratios

Web slendernessh/tw
16.2
Wall slendernessb/t
5.96

Equivalents in other standards