W – wide flange

W920x420

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 = 422d = 942tf = 39.9tf = 39.9tw = 22.5tw = 22.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
942mm
Flange widthbf
422mm
Web thicknesstw
22.5mm
Flange thicknesstf
39.9mm
Distance k (design)kdes
64mm
Distance k (detailing)kdet
73mm
Distance k1k1
41.3mm
Web clear depthT
797mm
Distance between flange centroidsho
902mm

Mass and area

Mass per lengthm
420kg/m
Cross-sectional areaA
53,500mm²

Strong axis x–x

Moment of inertiaIx
8,16010⁶ mm⁴
Elastic section modulusSx
17,20010³ mm³
Plastic section modulusZx
19,50010³ mm³
Radius of gyrationrx
391mm

Weak axis y–y

Moment of inertiaIy
49910⁶ mm⁴
Elastic section modulusSy
2,36010³ mm³
Plastic section modulusZy
3,65010³ mm³
Radius of gyrationry
96.5mm

Torsion and stability

Torsional constantJ
21,90010³ mm⁴
Warping constantCw
102,00010⁹ mm⁶
Effective radius of gyrationrts
114mm

Slenderness ratios

Flange slendernessbf/2tf
5.29
Web slendernessh/tw
36.2

Equivalents in other standards