M – miscellaneous shapes

M250x11.2

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 = 4.39tf = 4.39tw = 3.3tw = 3.3
Cross-section, to scaledimensions in mm

Dimensions

Depthd
254mm
Flange widthbf
68.3mm
Web thicknesstw
3.3mm
Flange thicknesstf
4.39mm
Distance k (design)kdes
11.1mm
Distance k (detailing)kdet
11.1mm
Distance k1k1
7.94mm
Web clear depthT
232mm
Distance between flange centroidsho
249mm

Mass and area

Mass per lengthm
11.2kg/m
Cross-sectional areaA
1,430mm²

Strong axis x–x

Moment of inertiaIx
13.710⁶ mm⁴
Elastic section modulusSx
10810³ mm³
Plastic section modulusZx
12710³ mm³
Radius of gyrationrx
97.8mm

Weak axis y–y

Moment of inertiaIy
0.23410⁶ mm⁴
Elastic section modulusSy
6.8510³ mm³
Plastic section modulusZy
1110³ mm³
Radius of gyrationry
12.8mm

Torsion and stability

Torsional constantJ
7.7810³ mm⁴
Warping constantCw
3.6310⁹ mm⁶
Effective radius of gyrationrts
16.4mm

Slenderness ratios

Flange slendernessbf/2tf
7.77
Web slendernessh/tw
71

Equivalents in other standards