W – wide flange

W310x107

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 = 305d = 312tf = 17tf = 17tw = 10.9tw = 10.9
Cross-section, to scaledimensions in mm

Dimensions

Depthd
312mm
Flange widthbf
305mm
Web thicknesstw
10.9mm
Flange thicknesstf
17mm
Distance k (design)kdes
32.3mm
Distance k (detailing)kdet
39.7mm
Distance k1k1
27mm
Web clear depthT
232mm
Distance between flange centroidsho
295mm

Mass and area

Mass per lengthm
107kg/m
Cross-sectional areaA
13,600mm²

Strong axis x–x

Moment of inertiaIx
24810⁶ mm⁴
Elastic section modulusSx
1,60010³ mm³
Plastic section modulusZx
1,77010³ mm³
Radius of gyrationrx
135mm

Weak axis y–y

Moment of inertiaIy
81.210⁶ mm⁴
Elastic section modulusSy
53110³ mm³
Plastic section modulusZy
80610³ mm³
Radius of gyrationry
77.2mm

Torsion and stability

Torsional constantJ
1,22010³ mm⁴
Warping constantCw
1,76010⁹ mm⁶
Effective radius of gyrationrts
86.6mm

Slenderness ratios

Flange slendernessbf/2tf
8.99
Web slendernessh/tw
22.6

Equivalents in other standards