Dimensions and section properties for WT8X20

Structural sectional properties for a WT8X20 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT8X20
Cross Sectional AreaA5.89 in2
Section Widthb7 in
Section Depthd8.01 in
Flange thicknesstf0.505 in
Web thicknesstw0.305 in
Radius of Gyration about X-Xrx2.37 in
Radius of Gyrations about Y-Yry1.56 in
Moment of Inertia about X-XIx33.1 in4
Moment of Intertia about Y-YIy14.4 in4
Elastic Section Modulus about X-XSx5.35 in3
Elastic Section Modulus about Y-YSy4.12 in3
Plastic Section Modulus about X-XZx9.43 in3
Plastic Section Modulus about Y-YZy6.36 in3
St. Venant Torsional ConstantJ0.396 in4
Warping Torsion ConstantCw0.673 in6
Self Weight of sectionWeight20 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT8X20
Cross Sectional AreaA3800 mm2
Section Widthb178 mm
Section Depthd203 mm
Flange thicknesstf12.8 mm
Web thicknesstw7.7 mm
Radius of Gyration about X-Xrx60 mm
Radius of Gyrations about Y-Yry40 mm
Moment of Inertia about X-XIx14000000 mm4
Moment of Intertia about Y-YIy6000000 mm4
Elastic Section Modulus about X-XSx88000 mm3
Elastic Section Modulus about Y-YSy68000 mm3
Plastic Section Modulus about X-XZx155000 mm3
Plastic Section Modulus about Y-YZy104000 mm3
St. Venant Torsional ConstantJ165000 mm4
Warping Torsion ConstantCw0 mm6
Self Weight of sectionWeight30 kg/m

Note: Metric units have been converted from tabulated imperial values and rounded to a reasonable number of significant figures.

A WT8X20 steel section is a standard North American steel section in the WT - Tee Sections category. It weighs 20 lb/ft and has a cross sectional area of 5.89 in2. The height and width of the section are 8.01 in and 7 in respectively.

The section has a tensile yield capacity of:

kip

The section has a flexural plastic moment capacity of:

kip-ft

The section has a flexural elastic moment capacity of:

kip-ft