W – wide flange

W250x73

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 = 254d = 254tf = 14.2tf = 14.2tw = 8.64tw = 8.64
Cross-section, to scaledimensions in mm

Dimensions

Depthd
254mm
Flange widthbf
254mm
Web thicknesstw
8.64mm
Flange thicknesstf
14.2mm
Distance k (design)kdes
26.9mm
Distance k (detailing)kdet
31.8mm
Distance k1k1
20.6mm
Web clear depthT
191mm
Distance between flange centroidsho
240mm

Mass and area

Mass per lengthm
73kg/m
Cross-sectional areaA
9,290mm²

Strong axis x–x

Moment of inertiaIx
11310⁶ mm⁴
Elastic section modulusSx
89510³ mm³
Plastic section modulusZx
99010³ mm³
Radius of gyrationrx
110mm

Weak axis y–y

Moment of inertiaIy
38.910⁶ mm⁴
Elastic section modulusSy
30610³ mm³
Plastic section modulusZy
46410³ mm³
Radius of gyrationry
64.5mm

Torsion and stability

Torsional constantJ
57910³ mm⁴
Warping constantCw
55610⁹ mm⁶
Effective radius of gyrationrts
72.1mm

Slenderness ratios

Flange slendernessbf/2tf
8.93
Web slendernessh/tw
23.1

Equivalents in other standards