Dimensions and section properties for WT20X139

Structural sectional properties for a WT20X139 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT20X139
Cross Sectional AreaA41 in2
Section Widthb12 in
Section Depthd20.1 in
Flange thicknesstf1.81 in
Web thicknesstw1.03 in
Radius of Gyration about X-Xrx6.14 in
Radius of Gyrations about Y-Yry2.52 in
Moment of Inertia about X-XIx1550 in4
Moment of Intertia about Y-YIy261 in4
Elastic Section Modulus about X-XSx106 in3
Elastic Section Modulus about Y-YSy43.5 in3
Plastic Section Modulus about X-XZx191 in3
Plastic Section Modulus about Y-YZy69.9 in3
St. Venant Torsional ConstantJ32.4 in4
Warping Torsion ConstantCw282 in6
Self Weight of sectionWeight139 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT20X139
Cross Sectional AreaA26452 mm2
Section Widthb305 mm
Section Depthd511 mm
Flange thicknesstf46 mm
Web thicknesstw26.2 mm
Radius of Gyration about X-Xrx156 mm
Radius of Gyrations about Y-Yry64 mm
Moment of Inertia about X-XIx645000000 mm4
Moment of Intertia about Y-YIy109000000 mm4
Elastic Section Modulus about X-XSx1737000 mm3
Elastic Section Modulus about Y-YSy713000 mm3
Plastic Section Modulus about X-XZx3130000 mm3
Plastic Section Modulus about Y-YZy1145000 mm3
St. Venant Torsional ConstantJ13486000 mm4
Warping Torsion ConstantCw76000000000 mm6
Self Weight of sectionWeight207 kg/m

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

A WT20X139 steel section is a standard North American steel section in the WT - Tee Sections category. It weighs 139 lb/ft and has a cross sectional area of 41 in2. The height and width of the section are 20.1 in and 12 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