W – wide flange

W410x38.8

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 = 140d = 399tf = 8.76tf = 8.76tw = 6.35tw = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
399mm
Flange widthbf
140mm
Web thicknesstw
6.35mm
Flange thicknesstf
8.76mm
Distance k (design)kdes
19mm
Distance k (detailing)kdet
27mm
Distance k1k1
19.1mm
Web clear depthT
346mm
Distance between flange centroidsho
391mm

Mass and area

Mass per lengthm
38.8kg/m
Cross-sectional areaA
4,950mm²

Strong axis x–x

Moment of inertiaIx
12510⁶ mm⁴
Elastic section modulusSx
62910³ mm³
Plastic section modulusZx
72410³ mm³
Radius of gyrationrx
159mm

Weak axis y–y

Moment of inertiaIy
3.9910⁶ mm⁴
Elastic section modulusSy
57.210³ mm³
Plastic section modulusZy
89.810³ mm³
Radius of gyrationry
28.4mm

Torsion and stability

Torsional constantJ
10910³ mm⁴
Warping constantCw
15210⁹ mm⁶
Effective radius of gyrationrts
35.1mm

Slenderness ratios

Flange slendernessbf/2tf
7.97
Web slendernessh/tw
56.8

Equivalents in other standards