W – wide flange

W200x71

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 = 206d = 216tf = 17.4tf = 17.4tw = 10.2tw = 10.2
Cross-section, to scaledimensions in mm

Dimensions

Depthd
216mm
Flange widthbf
206mm
Web thicknesstw
10.2mm
Flange thicknesstf
17.4mm
Distance k (design)kdes
27.4mm
Distance k (detailing)kdet
34.9mm
Distance k1k1
20.6mm
Web clear depthT
146mm
Distance between flange centroidsho
199mm

Mass and area

Mass per lengthm
71kg/m
Cross-sectional areaA
9,100mm²

Strong axis x–x

Moment of inertiaIx
76.610⁶ mm⁴
Elastic section modulusSx
70810³ mm³
Plastic section modulusZx
80310³ mm³
Radius of gyrationrx
91.7mm

Weak axis y–y

Moment of inertiaIy
25.310⁶ mm⁴
Elastic section modulusSy
24610³ mm³
Plastic section modulusZy
37510³ mm³
Radius of gyrationry
52.8mm

Torsion and stability

Torsional constantJ
81610³ mm⁴
Warping constantCw
25010⁹ mm⁶
Effective radius of gyrationrts
59.7mm

Slenderness ratios

Flange slendernessbf/2tf
5.92
Web slendernessh/tw
15.9

Equivalents in other standards