WT – tees

WT180x55

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 = 257d = 180tf = 19.9tf = 19.9tw = 11.4tw = 11.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
180mm
Flange widthbf
257mm
Web thicknesstw
11.4mm
Flange thicknesstf
19.9mm
Distance k (design)kdes
35.1mm
Distance k (detailing)kdet
41.3mm

Mass and area

Mass per lengthm
55kg/m
Cross-sectional areaA
7,030mm²

Strong axis x–x

Moment of inertiaIx
1510⁶ mm⁴
Elastic section modulusSx
10210³ mm³
Plastic section modulusZx
18810³ mm³
Radius of gyrationrx
46.2mm

Weak axis y–y

Moment of inertiaIy
27.810⁶ mm⁴
Elastic section modulusSy
21810³ mm³
Plastic section modulusZy
33110³ mm³
Radius of gyrationry
63mm

Torsion and stability

Torsional constantJ
80310³ mm⁴
Warping constantCw
1.1310⁹ mm⁶
Polar radius (shear center)r̄o
81.5mm
Flexural constantH
0.916

Centers

Centroidȳ
33.5mm
Plastic neutral axisyp
13.7mm

Slenderness ratios

Flange slendernessbf/2tf
6.41
Wall slendernessD/t
15.8

Equivalents in other standards