M – miscellaneous shapes

M250x13.4

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 = 68.3d = 254tf = 5.23tf = 5.23tw = 3.99tw = 3.99
Cross-section, to scaledimensions in mm

Dimensions

Depthd
254mm
Flange widthbf
68.3mm
Web thicknesstw
3.99mm
Flange thicknesstf
5.23mm
Distance k (design)kdes
14.3mm
Distance k (detailing)kdet
14.3mm
Distance k1k1
9.53mm
Web clear depthT
225mm
Distance between flange centroidsho
249mm

Mass and area

Mass per lengthm
13.4kg/m
Cross-sectional areaA
1,710mm²

Strong axis x–x

Moment of inertiaIx
16.210⁶ mm⁴
Elastic section modulusSx
12810³ mm³
Plastic section modulusZx
15110³ mm³
Radius of gyrationrx
97.3mm

Weak axis y–y

Moment of inertiaIy
0.2810⁶ mm⁴
Elastic section modulusSy
8.1910³ mm³
Plastic section modulusZy
13.310³ mm³
Radius of gyrationry
12.8mm

Torsion and stability

Torsional constantJ
13.110³ mm⁴
Warping constantCw
4.3210⁹ mm⁶
Effective radius of gyrationrts
16.5mm

Slenderness ratios

Flange slendernessbf/2tf
6.53
Web slendernessh/tw
58.4

Equivalents in other standards