W – wide flange

W1000x321

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 = 401d = 991tf = 31tf = 31tw = 16.5tw = 16.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
991mm
Flange widthbf
401mm
Web thicknesstw
16.5mm
Flange thicknesstf
31mm
Distance k (design)kdes
61mm
Distance k (detailing)kdet
63.5mm
Distance k1k1
39.7mm
Web clear depthT
864mm
Distance between flange centroidsho
960mm

Mass and area

Mass per lengthm
321kg/m
Cross-sectional areaA
41,000mm²

Strong axis x–x

Moment of inertiaIx
6,95010⁶ mm⁴
Elastic section modulusSx
14,10010³ mm³
Plastic section modulusZx
15,80010³ mm³
Radius of gyrationrx
411mm

Weak axis y–y

Moment of inertiaIy
33410⁶ mm⁴
Elastic section modulusSy
1,66010³ mm³
Plastic section modulusZy
2,56010³ mm³
Radius of gyrationry
89.9mm

Torsion and stability

Torsional constantJ
10,30010³ mm⁴
Warping constantCw
76,30010⁹ mm⁶
Effective radius of gyrationrts
106mm

Slenderness ratios

Flange slendernessbf/2tf
6.45
Web slendernessh/tw
52.6

Equivalents in other standards