WT – tees

WT345x70

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 = 254d = 343tf = 18.9tf = 18.9tw = 12.4tw = 12.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
343mm
Flange widthbf
254mm
Web thicknesstw
12.4mm
Flange thicknesstf
18.9mm
Distance k (design)kdes
34mm
Distance k (detailing)kdet
49.2mm

Mass and area

Mass per lengthm
70kg/m
Cross-sectional areaA
8,900mm²

Strong axis x–x

Moment of inertiaIx
99.510⁶ mm⁴
Elastic section modulusSx
39010³ mm³
Plastic section modulusZx
69510³ mm³
Radius of gyrationrx
106mm

Weak axis y–y

Moment of inertiaIy
25.810⁶ mm⁴
Elastic section modulusSy
20310³ mm³
Plastic section modulusZy
31810³ mm³
Radius of gyrationry
53.8mm

Torsion and stability

Torsional constantJ
83710³ mm⁴
Warping constantCw
2.7410⁹ mm⁶
Polar radius (shear center)r̄o
141mm
Flexural constantH
0.702

Centers

Centroidȳ
86.6mm
Plastic neutral axisyp
17.6mm

Slenderness ratios

Flange slendernessbf/2tf
6.7
Wall slendernessD/t
27.6

Equivalents in other standards