M – miscellaneous shapes

M310x14.9

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 = 82.6d = 305tf = 4.57tf = 4.57tw = 3.78tw = 3.78
Cross-section, to scaledimensions in mm

Dimensions

Depthd
305mm
Flange widthbf
82.6mm
Web thicknesstw
3.78mm
Flange thicknesstf
4.57mm
Distance k (design)kdes
12.7mm
Distance k (detailing)kdet
12.7mm
Distance k1k1
9.53mm
Web clear depthT
279mm
Distance between flange centroidsho
300mm

Mass and area

Mass per lengthm
14.9kg/m
Cross-sectional areaA
1,900mm²

Strong axis x–x

Moment of inertiaIx
25.710⁶ mm⁴
Elastic section modulusSx
16910³ mm³
Plastic section modulusZx
20010³ mm³
Radius of gyrationrx
116mm

Weak axis y–y

Moment of inertiaIy
0.42910⁶ mm⁴
Elastic section modulusSy
10.410³ mm³
Plastic section modulusZy
16.710³ mm³
Radius of gyrationry
15mm

Torsion and stability

Torsional constantJ
12.210³ mm⁴
Warping constantCw
9.6410⁹ mm⁶
Effective radius of gyrationrts
19.5mm

Slenderness ratios

Flange slendernessbf/2tf
9.03
Web slendernessh/tw
74.7

Equivalents in other standards