W – wide flange

W920x656

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 = 432d = 988tf = 62tf = 62tw = 34.5tw = 34.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
988mm
Flange widthbf
432mm
Web thicknesstw
34.5mm
Flange thicknesstf
62mm
Distance k (design)kdes
86.1mm
Distance k (detailing)kdet
95.3mm
Distance k1k1
47.6mm
Web clear depthT
797mm
Distance between flange centroidsho
927mm

Mass and area

Mass per lengthm
656kg/m
Cross-sectional areaA
83,900mm²

Strong axis x–x

Moment of inertiaIx
13,40010⁶ mm⁴
Elastic section modulusSx
27,00010³ mm³
Plastic section modulusZx
31,30010³ mm³
Radius of gyrationrx
399mm

Weak axis y–y

Moment of inertiaIy
82810⁶ mm⁴
Elastic section modulusSy
3,85010³ mm³
Plastic section modulusZy
6,03010³ mm³
Radius of gyrationry
99.6mm

Torsion and stability

Torsional constantJ
80,70010³ mm⁴
Warping constantCw
178,00010⁹ mm⁶
Effective radius of gyrationrts
119mm

Slenderness ratios

Flange slendernessbf/2tf
3.48
Web slendernessh/tw
23.6

Equivalents in other standards