W – wide flange

W310x226

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 = 318d = 348tf = 35.6tf = 35.6tw = 22.1tw = 22.1
Cross-section, to scaledimensions in mm

Dimensions

Depthd
348mm
Flange widthbf
318mm
Web thicknesstw
22.1mm
Flange thicknesstf
35.6mm
Distance k (design)kdes
50.8mm
Distance k (detailing)kdet
58.7mm
Distance k1k1
31.8mm
Web clear depthT
232mm
Distance between flange centroidsho
312mm

Mass and area

Mass per lengthm
226kg/m
Cross-sectional areaA
28,800mm²

Strong axis x–x

Moment of inertiaIx
59510⁶ mm⁴
Elastic section modulusSx
3,42010³ mm³
Plastic section modulusZx
3,98010³ mm³
Radius of gyrationrx
144mm

Weak axis y–y

Moment of inertiaIy
18910⁶ mm⁴
Elastic section modulusSy
1,19010³ mm³
Plastic section modulusZy
1,82010³ mm³
Radius of gyrationry
81mm

Torsion and stability

Torsional constantJ
10,70010³ mm⁴
Warping constantCw
4,62010⁹ mm⁶
Effective radius of gyrationrts
93mm

Slenderness ratios

Flange slendernessbf/2tf
4.46
Web slendernessh/tw
11.2

Equivalents in other standards