W – wide flange

W250x44.8

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 = 148d = 267tf = 13tf = 13tw = 7.62tw = 7.62
Cross-section, to scaledimensions in mm

Dimensions

Depthd
267mm
Flange widthbf
148mm
Web thicknesstw
7.62mm
Flange thicknesstf
13mm
Distance k (design)kdes
20.6mm
Distance k (detailing)kdet
28.6mm
Distance k1k1
17.5mm
Web clear depthT
210mm
Distance between flange centroidsho
254mm

Mass and area

Mass per lengthm
44.8kg/m
Cross-sectional areaA
5,700mm²

Strong axis x–x

Moment of inertiaIx
70.810⁶ mm⁴
Elastic section modulusSx
53110³ mm³
Plastic section modulusZx
60010³ mm³
Radius of gyrationrx
111mm

Weak axis y–y

Moment of inertiaIy
6.9510⁶ mm⁴
Elastic section modulusSy
94.210³ mm³
Plastic section modulusZy
14510³ mm³
Radius of gyrationry
34.8mm

Torsion and stability

Torsional constantJ
25910³ mm⁴
Warping constantCw
11110⁹ mm⁶
Effective radius of gyrationrts
40.6mm

Slenderness ratios

Flange slendernessbf/2tf
5.7
Web slendernessh/tw
29.5

Equivalents in other standards