MC – miscellaneous channels

MC250x33

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 = 84.3d = 254tf = 14.6tf = 14.6tw = 7.37tw = 7.37
Cross-section, to scaledimensions in mm

Dimensions

Depthd
254mm
Flange widthbf
84.3mm
Web thicknesstw
7.37mm
Flange thicknesstf
14.6mm
Distance k (design)kdes
33.3mm
Distance k (detailing)kdet
33.3mm
Web clear depthT
187mm
Distance between flange centroidsho
240mm

Mass and area

Mass per lengthm
33kg/m
Cross-sectional areaA
4,160mm²

Strong axis x–x

Moment of inertiaIx
42.510⁶ mm⁴
Elastic section modulusSx
33610³ mm³
Plastic section modulusZx
39210³ mm³
Radius of gyrationrx
101mm

Weak axis y–y

Moment of inertiaIy
2.6610⁶ mm⁴
Elastic section modulusSy
45.110³ mm³
Plastic section modulusZy
86.710³ mm³
Radius of gyrationry
25.3mm

Torsion and stability

Torsional constantJ
21210³ mm⁴
Warping constantCw
29.510⁹ mm⁶
Effective radius of gyrationrts
29mm
Polar radius (shear center)r̄o
117mm
Flexural constantH
0.791
Shear centereo
28.4mm

Centers

Centroidx̄
25.1mm
Plastic neutral axisxp
11.9mm

Slenderness ratios

Web slendernessh/tw
25.4
Wall slendernessb/t
5.77

Equivalents in other standards