W – wide flange

W310x202

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 = 315d = 340tf = 31.8tf = 31.8tw = 20.1tw = 20.1
Cross-section, to scaledimensions in mm

Dimensions

Depthd
340mm
Flange widthbf
315mm
Web thicknesstw
20.1mm
Flange thicknesstf
31.8mm
Distance k (design)kdes
47mm
Distance k (detailing)kdet
54mm
Distance k1k1
31.8mm
Web clear depthT
232mm
Distance between flange centroidsho
310mm

Mass and area

Mass per lengthm
202kg/m
Cross-sectional areaA
25,700mm²

Strong axis x–x

Moment of inertiaIx
51610⁶ mm⁴
Elastic section modulusSx
3,05010³ mm³
Plastic section modulusZx
3,51010³ mm³
Radius of gyrationrx
142mm

Weak axis y–y

Moment of inertiaIy
16610⁶ mm⁴
Elastic section modulusSy
1,05010³ mm³
Plastic section modulusZy
1,61010³ mm³
Radius of gyrationry
80.3mm

Torsion and stability

Torsional constantJ
7,70010³ mm⁴
Warping constantCw
3,95010⁹ mm⁶
Effective radius of gyrationrts
91.7mm

Slenderness ratios

Flange slendernessbf/2tf
4.96
Web slendernessh/tw
12.3

Equivalents in other standards