WT – tees

WT550x171.5

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 = 401d = 546tf = 31tf = 31tw = 18tw = 18
Cross-section, to scaledimensions in mm

Dimensions

Depthd
546mm
Flange widthbf
401mm
Web thicknesstw
18mm
Flange thicknesstf
31mm
Distance k (design)kdes
51.1mm
Distance k (detailing)kdet
61.9mm

Mass and area

Mass per lengthm
172kg/m
Cross-sectional areaA
21,900mm²

Strong axis x–x

Moment of inertiaIx
59910⁶ mm⁴
Elastic section modulusSx
1,45010³ mm³
Plastic section modulusZx
2,57010³ mm³
Radius of gyrationrx
166mm

Weak axis y–y

Moment of inertiaIy
16610⁶ mm⁴
Elastic section modulusSy
82810³ mm³
Plastic section modulusZy
1,28010³ mm³
Radius of gyrationry
87.1mm

Torsion and stability

Torsional constantJ
5,16010³ mm⁴
Warping constantCw
37.310⁹ mm⁶
Polar radius (shear center)r̄o
220mm
Flexural constantH
0.723

Centers

Centroidȳ
131mm
Plastic neutral axisyp
27.2mm

Slenderness ratios

Flange slendernessbf/2tf
6.45
Wall slendernessD/t
30.3

Equivalents in other standards