W – wide flange

W310x23.8

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 = 101d = 305tf = 6.73tf = 6.73tw = 5.59tw = 5.59
Cross-section, to scaledimensions in mm

Dimensions

Depthd
305mm
Flange widthbf
101mm
Web thicknesstw
5.59mm
Flange thicknesstf
6.73mm
Distance k (design)kdes
14.4mm
Distance k (detailing)kdet
20.6mm
Distance k1k1
14.3mm
Web clear depthT
264mm
Distance between flange centroidsho
297mm

Mass and area

Mass per lengthm
23.8kg/m
Cross-sectional areaA
3,040mm²

Strong axis x–x

Moment of inertiaIx
42.910⁶ mm⁴
Elastic section modulusSx
28010³ mm³
Plastic section modulusZx
32910³ mm³
Radius of gyrationrx
119mm

Weak axis y–y

Moment of inertiaIy
1.1710⁶ mm⁴
Elastic section modulusSy
23.110³ mm³
Plastic section modulusZy
3710³ mm³
Radius of gyrationry
19.6mm

Torsion and stability

Torsional constantJ
42.910³ mm⁴
Warping constantCw
2610⁹ mm⁶
Effective radius of gyrationrts
25mm

Slenderness ratios

Flange slendernessbf/2tf
7.53
Web slendernessh/tw
49.4

Equivalents in other standards