W – wide flange

W840x527

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 = 409d = 904tf = 53.1tf = 53.1tw = 29.5tw = 29.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
904mm
Flange widthbf
409mm
Web thicknesstw
29.5mm
Flange thicknesstf
53.1mm
Distance k (design)kdes
73.2mm
Distance k (detailing)kdet
85.7mm
Distance k1k1
46mm
Web clear depthT
733mm
Distance between flange centroidsho
851mm

Mass and area

Mass per lengthm
527kg/m
Cross-sectional areaA
67,100mm²

Strong axis x–x

Moment of inertiaIx
9,16010⁶ mm⁴
Elastic section modulusSx
20,30010³ mm³
Plastic section modulusZx
23,30010³ mm³
Radius of gyrationrx
368mm

Weak axis y–y

Moment of inertiaIy
60810⁶ mm⁴
Elastic section modulusSy
2,97010³ mm³
Plastic section modulusZy
4,62010³ mm³
Radius of gyrationry
95mm

Torsion and stability

Torsional constantJ
47,90010³ mm⁴
Warping constantCw
110,00010⁹ mm⁶
Effective radius of gyrationrts
113mm

Slenderness ratios

Flange slendernessbf/2tf
3.85
Web slendernessh/tw
25.7

Equivalents in other standards