WT – tees

WT205x30

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 = 178d = 203tf = 12.8tf = 12.8tw = 7.75tw = 7.75
Cross-section, to scaledimensions in mm

Dimensions

Depthd
203mm
Flange widthbf
178mm
Web thicknesstw
7.75mm
Flange thicknesstf
12.8mm
Distance k (design)kdes
23mm
Distance k (detailing)kdet
30.2mm

Mass and area

Mass per lengthm
30kg/m
Cross-sectional areaA
3,800mm²

Strong axis x–x

Moment of inertiaIx
13.810⁶ mm⁴
Elastic section modulusSx
87.710³ mm³
Plastic section modulusZx
15510³ mm³
Radius of gyrationrx
60.2mm

Weak axis y–y

Moment of inertiaIy
5.9910⁶ mm⁴
Elastic section modulusSy
67.510³ mm³
Plastic section modulusZy
10410³ mm³
Radius of gyrationry
39.6mm

Torsion and stability

Torsional constantJ
16510³ mm⁴
Warping constantCw
0.18110⁹ mm⁶
Polar radius (shear center)r̄o
82.3mm
Flexural constantH
0.769

Centers

Centroidȳ
46mm
Plastic neutral axisyp
10.7mm

Slenderness ratios

Flange slendernessbf/2tf
6.93
Wall slendernessD/t
26.3

Equivalents in other standards