Dimensions and section properties for WT8X18

Structural sectional properties for a WT8X18 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT8X18
Cross Sectional AreaA5.29 in2
Section Widthb6.99 in
Section Depthd7.93 in
Flange thicknesstf0.43 in
Web thicknesstw0.295 in
Radius of Gyration about X-Xrx2.41 in
Radius of Gyrations about Y-Yry1.52 in
Moment of Inertia about X-XIx30.6 in4
Moment of Intertia about Y-YIy12.2 in4
Elastic Section Modulus about X-XSx5.05 in3
Elastic Section Modulus about Y-YSy3.5 in3
Plastic Section Modulus about X-XZx8.93 in3
Plastic Section Modulus about Y-YZy5.42 in3
St. Venant Torsional ConstantJ0.272 in4
Warping Torsion ConstantCw0.516 in6
Self Weight of sectionWeight18 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT8X18
Cross Sectional AreaA3413 mm2
Section Widthb178 mm
Section Depthd201 mm
Flange thicknesstf10.9 mm
Web thicknesstw7.5 mm
Radius of Gyration about X-Xrx61 mm
Radius of Gyrations about Y-Yry39 mm
Moment of Inertia about X-XIx13000000 mm4
Moment of Intertia about Y-YIy5000000 mm4
Elastic Section Modulus about X-XSx83000 mm3
Elastic Section Modulus about Y-YSy57000 mm3
Plastic Section Modulus about X-XZx146000 mm3
Plastic Section Modulus about Y-YZy89000 mm3
St. Venant Torsional ConstantJ113000 mm4
Warping Torsion ConstantCw0 mm6
Self Weight of sectionWeight27 kg/m

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

A WT8X18 steel section is a standard North American steel section in the WT - Tee Sections category. It weighs 18 lb/ft and has a cross sectional area of 5.29 in2. The height and width of the section are 7.93 in and 6.99 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