W – wide flange

W310x52

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 = 167d = 318tf = 13.2tf = 13.2tw = 7.62tw = 7.62
Cross-section, to scaledimensions in mm

Dimensions

Depthd
318mm
Flange widthbf
167mm
Web thicknesstw
7.62mm
Flange thicknesstf
13.2mm
Distance k (design)kdes
20.8mm
Distance k (detailing)kdet
30.2mm
Distance k1k1
19.1mm
Web clear depthT
257mm
Distance between flange centroidsho
305mm

Mass and area

Mass per lengthm
52kg/m
Cross-sectional areaA
6,650mm²

Strong axis x–x

Moment of inertiaIx
11910⁶ mm⁴
Elastic section modulusSx
74710³ mm³
Plastic section modulusZx
83910³ mm³
Radius of gyrationrx
133mm

Weak axis y–y

Moment of inertiaIy
10.210⁶ mm⁴
Elastic section modulusSy
12210³ mm³
Plastic section modulusZy
18810³ mm³
Radius of gyrationry
39.1mm

Torsion and stability

Torsional constantJ
30810³ mm⁴
Warping constantCw
23610⁹ mm⁶
Effective radius of gyrationrts
45.5mm

Slenderness ratios

Flange slendernessbf/2tf
6.31
Web slendernessh/tw
36.2

Equivalents in other standards