M – miscellaneous shapes

M250x11.9

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 = 68.3d = 253tf = 4.62tf = 4.62tw = 3.58tw = 3.58
Cross-section, to scaledimensions in mm

Dimensions

Depthd
253mm
Flange widthbf
68.3mm
Web thicknesstw
3.58mm
Flange thicknesstf
4.62mm
Distance k (design)kdes
14.3mm
Distance k (detailing)kdet
14.3mm
Distance k1k1
9.53mm
Web clear depthT
225mm
Distance between flange centroidsho
248mm

Mass and area

Mass per lengthm
11.9kg/m
Cross-sectional areaA
1,530mm²

Strong axis x–x

Moment of inertiaIx
14.410⁶ mm⁴
Elastic section modulusSx
11410³ mm³
Plastic section modulusZx
13410³ mm³
Radius of gyrationrx
97mm

Weak axis y–y

Moment of inertiaIy
0.24710⁶ mm⁴
Elastic section modulusSy
7.2310³ mm³
Plastic section modulusZy
11.710³ mm³
Radius of gyrationry
12.7mm

Torsion and stability

Torsional constantJ
9.3210³ mm⁴
Warping constantCw
3.8110⁹ mm⁶
Effective radius of gyrationrts
16.4mm

Slenderness ratios

Flange slendernessbf/2tf
7.39
Web slendernessh/tw
65

Equivalents in other standards