W – wide flange

W310x86

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 = 254d = 310tf = 16.3tf = 16.3tw = 9.14tw = 9.14
Cross-section, to scaledimensions in mm

Dimensions

Depthd
310mm
Flange widthbf
254mm
Web thicknesstw
9.14mm
Flange thicknesstf
16.3mm
Distance k (design)kdes
31.5mm
Distance k (detailing)kdet
38.1mm
Distance k1k1
23.8mm
Web clear depthT
235mm
Distance between flange centroidsho
295mm

Mass and area

Mass per lengthm
86kg/m
Cross-sectional areaA
11,000mm²

Strong axis x–x

Moment of inertiaIx
19810⁶ mm⁴
Elastic section modulusSx
1,28010³ mm³
Plastic section modulusZx
1,42010³ mm³
Radius of gyrationrx
134mm

Weak axis y–y

Moment of inertiaIy
44.510⁶ mm⁴
Elastic section modulusSy
35110³ mm³
Plastic section modulusZy
53310³ mm³
Radius of gyrationry
63.8mm

Torsion and stability

Torsional constantJ
87410³ mm⁴
Warping constantCw
95910⁹ mm⁶
Effective radius of gyrationrts
71.4mm

Slenderness ratios

Flange slendernessbf/2tf
7.82
Web slendernessh/tw
27

Equivalents in other standards