S – standard beams

S250x52

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 = 125d = 254tf = 12.5tf = 12.5tw = 15.1tw = 15.1
Cross-section, to scaledimensions in mm

Dimensions

Depthd
254mm
Flange widthbf
125mm
Web thicknesstw
15.1mm
Flange thicknesstf
12.5mm
Distance k (design)kdes
28.7mm
Distance k (detailing)kdet
28.6mm
Web clear depthT
197mm
Distance between flange centroidsho
242mm

Mass and area

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

Strong axis x–x

Moment of inertiaIx
61.210⁶ mm⁴
Elastic section modulusSx
48210³ mm³
Plastic section modulusZx
58010³ mm³
Radius of gyrationrx
96mm

Weak axis y–y

Moment of inertiaIy
3.4510⁶ mm⁴
Elastic section modulusSy
55.110³ mm³
Plastic section modulusZy
10110³ mm³
Radius of gyrationry
22.8mm

Torsion and stability

Torsional constantJ
53710³ mm⁴
Warping constantCw
50.510⁹ mm⁶
Effective radius of gyrationrts
29.5mm

Slenderness ratios

Flange slendernessbf/2tf
5.03
Web slendernessh/tw
13.4

Equivalents in other standards