MC – miscellaneous channels

MC330x74

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 = 112d = 330tf = 15.5tf = 15.5tw = 20tw = 20
Cross-section, to scaledimensions in mm

Dimensions

Depthd
330mm
Flange widthbf
112mm
Web thicknesstw
20mm
Flange thicknesstf
15.5mm
Distance k (design)kdes
36.6mm
Distance k (detailing)kdet
36.5mm
Web clear depthT
257mm
Distance between flange centroidsho
315mm

Mass and area

Mass per lengthm
74kg/m
Cross-sectional areaA
9,480mm²

Strong axis x–x

Moment of inertiaIx
13110⁶ mm⁴
Elastic section modulusSx
79110³ mm³
Plastic section modulusZx
99610³ mm³
Radius of gyrationrx
117mm

Weak axis y–y

Moment of inertiaIy
6.8310⁶ mm⁴
Elastic section modulusSy
78.210³ mm³
Plastic section modulusZy
16710³ mm³
Radius of gyrationry
26.9mm

Torsion and stability

Torsional constantJ
1,23010³ mm⁴
Warping constantCw
15010⁹ mm⁶
Effective radius of gyrationrts
35.8mm
Polar radius (shear center)r̄o
129mm
Flexural constantH
0.875
Shear centereo
20.7mm

Centers

Centroidx̄
24.7mm
Plastic neutral axisxp
14.4mm

Slenderness ratios

Web slendernessh/tw
13.2
Wall slendernessb/t
7.23

Equivalents in other standards