W – wide flange

W310x313

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 = 325d = 373tf = 48.3tf = 48.3tw = 30tw = 30
Cross-section, to scaledimensions in mm

Dimensions

Depthd
373mm
Flange widthbf
325mm
Web thicknesstw
30mm
Flange thicknesstf
48.3mm
Distance k (design)kdes
63.5mm
Distance k (detailing)kdet
71.4mm
Distance k1k1
36.5mm
Web clear depthT
232mm
Distance between flange centroidsho
325mm

Mass and area

Mass per lengthm
313kg/m
Cross-sectional areaA
39,900mm²

Strong axis x–x

Moment of inertiaIx
89110⁶ mm⁴
Elastic section modulusSx
4,79010³ mm³
Plastic section modulusZx
5,70010³ mm³
Radius of gyrationrx
150mm

Weak axis y–y

Moment of inertiaIy
27610⁶ mm⁴
Elastic section modulusSy
1,70010³ mm³
Plastic section modulusZy
2,61010³ mm³
Radius of gyrationry
83.3mm

Torsion and stability

Torsional constantJ
26,90010³ mm⁴
Warping constantCw
7,30010⁹ mm⁶
Effective radius of gyrationrts
96.8mm

Slenderness ratios

Flange slendernessbf/2tf
3.37
Web slendernessh/tw
8.23

Equivalents in other standards