Dimensions and section properties for WT18X80

Structural sectional properties for a WT18X80 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT18X80
Cross Sectional AreaA23.5 in2
Section Widthb12 in
Section Depthd18 in
Flange thicknesstf1.02 in
Web thicknesstw0.65 in
Radius of Gyration about X-Xrx5.61 in
Radius of Gyrations about Y-Yry2.5 in
Moment of Inertia about X-XIx740 in4
Moment of Intertia about Y-YIy147 in4
Elastic Section Modulus about X-XSx55.8 in3
Elastic Section Modulus about Y-YSy24.6 in3
Plastic Section Modulus about X-XZx100 in3
Plastic Section Modulus about Y-YZy38.6 in3
St. Venant Torsional ConstantJ6.17 in4
Warping Torsion ConstantCw53.6 in6
Self Weight of sectionWeight80 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT18X80
Cross Sectional AreaA15161 mm2
Section Widthb305 mm
Section Depthd457 mm
Flange thicknesstf25.9 mm
Web thicknesstw16.5 mm
Radius of Gyration about X-Xrx142 mm
Radius of Gyrations about Y-Yry64 mm
Moment of Inertia about X-XIx308000000 mm4
Moment of Intertia about Y-YIy61000000 mm4
Elastic Section Modulus about X-XSx914000 mm3
Elastic Section Modulus about Y-YSy403000 mm3
Plastic Section Modulus about X-XZx1639000 mm3
Plastic Section Modulus about Y-YZy633000 mm3
St. Venant Torsional ConstantJ2568000 mm4
Warping Torsion ConstantCw14000000000 mm6
Self Weight of sectionWeight119 kg/m

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

A WT18X80 steel section is a standard North American steel section in the WT - Tee Sections category. It weighs 80 lb/ft and has a cross sectional area of 23.5 in2. The height and width of the section are 18 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