MC – miscellaneous channels

MC310x67

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 = 102d = 305tf = 17.8tf = 17.8tw = 18tw = 18
Cross-section, to scaledimensions in mm

Dimensions

Depthd
305mm
Flange widthbf
102mm
Web thicknesstw
18mm
Flange thicknesstf
17.8mm
Distance k (design)kdes
33.3mm
Distance k (detailing)kdet
33.3mm
Web clear depthT
238mm
Distance between flange centroidsho
287mm

Mass and area

Mass per lengthm
67kg/m
Cross-sectional areaA
8,520mm²

Strong axis x–x

Moment of inertiaIx
10410⁶ mm⁴
Elastic section modulusSx
68710³ mm³
Plastic section modulusZx
85210³ mm³
Radius of gyrationrx
111mm

Weak axis y–y

Moment of inertiaIy
6.5810⁶ mm⁴
Elastic section modulusSy
86.910³ mm³
Plastic section modulusZy
16610³ mm³
Radius of gyrationry
27.7mm

Torsion and stability

Torsional constantJ
97010³ mm⁴
Warping constantCw
10010⁹ mm⁶
Effective radius of gyrationrts
34.3mm
Polar radius (shear center)r̄o
124mm
Flexural constantH
0.851
Shear centereo
21.4mm

Centers

Centroidx̄
26.4mm
Plastic neutral axisxp
14mm

Slenderness ratios

Web slendernessh/tw
13
Wall slendernessb/t
5.73

Equivalents in other standards