W – wide flange

W250x38.5

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 = 147d = 262tf = 11.2tf = 11.2tw = 6.6tw = 6.6
Cross-section, to scaledimensions in mm

Dimensions

Depthd
262mm
Flange widthbf
147mm
Web thicknesstw
6.6mm
Flange thicknesstf
11.2mm
Distance k (design)kdes
18.8mm
Distance k (detailing)kdet
27mm
Distance k1k1
17.5mm
Web clear depthT
210mm
Distance between flange centroidsho
250mm

Mass and area

Mass per lengthm
38.5kg/m
Cross-sectional areaA
4,910mm²

Strong axis x–x

Moment of inertiaIx
59.910⁶ mm⁴
Elastic section modulusSx
45710³ mm³
Plastic section modulusZx
51310³ mm³
Radius of gyrationrx
110mm

Weak axis y–y

Moment of inertiaIy
5.8710⁶ mm⁴
Elastic section modulusSy
80.110³ mm³
Plastic section modulusZy
12310³ mm³
Radius of gyrationry
34.5mm

Torsion and stability

Torsional constantJ
16710³ mm⁴
Warping constantCw
92.610⁹ mm⁶
Effective radius of gyrationrts
40.1mm

Slenderness ratios

Flange slendernessbf/2tf
6.56
Web slendernessh/tw
34

Equivalents in other standards