W – wide flange

W920x449

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 = 424d = 947tf = 42.7tf = 42.7tw = 24tw = 24
Cross-section, to scaledimensions in mm

Dimensions

Depthd
947mm
Flange widthbf
424mm
Web thicknesstw
24mm
Flange thicknesstf
42.7mm
Distance k (design)kdes
66.8mm
Distance k (detailing)kdet
76.2mm
Distance k1k1
42.9mm
Web clear depthT
797mm
Distance between flange centroidsho
904mm

Mass and area

Mass per lengthm
449kg/m
Cross-sectional areaA
57,400mm²

Strong axis x–x

Moment of inertiaIx
8,78010⁶ mm⁴
Elastic section modulusSx
18,50010³ mm³
Plastic section modulusZx
21,00010³ mm³
Radius of gyrationrx
391mm

Weak axis y–y

Moment of inertiaIy
54110⁶ mm⁴
Elastic section modulusSy
2,56010³ mm³
Plastic section modulusZy
3,95010³ mm³
Radius of gyrationry
97mm

Torsion and stability

Torsional constantJ
26,80010³ mm⁴
Warping constantCw
111,00010⁹ mm⁶
Effective radius of gyrationrts
115mm

Slenderness ratios

Flange slendernessbf/2tf
4.96
Web slendernessh/tw
33.9

Equivalents in other standards