WT – tees

WT550x249.5

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 = 404d = 559tf = 45tf = 45tw = 26.2tw = 26.2
Cross-section, to scaledimensions in mm

Dimensions

Depthd
559mm
Flange widthbf
404mm
Web thicknesstw
26.2mm
Flange thicknesstf
45mm
Distance k (design)kdes
65mm
Distance k (detailing)kdet
76.2mm

Mass and area

Mass per lengthm
250kg/m
Cross-sectional areaA
31,700mm²

Strong axis x–x

Moment of inertiaIx
90310⁶ mm⁴
Elastic section modulusSx
2,15010³ mm³
Plastic section modulusZx
3,83010³ mm³
Radius of gyrationrx
168mm

Weak axis y–y

Moment of inertiaIy
25010⁶ mm⁴
Elastic section modulusSy
1,23010³ mm³
Plastic section modulusZy
1,93010³ mm³
Radius of gyrationry
88.6mm

Torsion and stability

Torsional constantJ
15,50010³ mm⁴
Warping constantCw
11810⁹ mm⁶
Polar radius (shear center)r̄o
224mm
Flexural constantH
0.723

Centers

Centroidȳ
140mm
Plastic neutral axisyp
39.1mm

Slenderness ratios

Flange slendernessbf/2tf
4.5
Wall slendernessD/t
21.4

Equivalents in other standards