Dimensions and section properties for WT18X91

Structural sectional properties for a WT18X91 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT18X91
Cross Sectional AreaA26.8 in2
Section Widthb12.1 in
Section Depthd18.2 in
Flange thicknesstf1.18 in
Web thicknesstw0.725 in
Radius of Gyration about X-Xrx5.62 in
Radius of Gyrations about Y-Yry2.55 in
Moment of Inertia about X-XIx845 in4
Moment of Intertia about Y-YIy174 in4
Elastic Section Modulus about X-XSx63.1 in3
Elastic Section Modulus about Y-YSy28.8 in3
Plastic Section Modulus about X-XZx113 in3
Plastic Section Modulus about Y-YZy45.3 in3
St. Venant Torsional ConstantJ9.2 in4
Warping Torsion ConstantCw77.6 in6
Self Weight of sectionWeight91 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT18X91
Cross Sectional AreaA17290 mm2
Section Widthb307 mm
Section Depthd462 mm
Flange thicknesstf30 mm
Web thicknesstw18.4 mm
Radius of Gyration about X-Xrx143 mm
Radius of Gyrations about Y-Yry65 mm
Moment of Inertia about X-XIx352000000 mm4
Moment of Intertia about Y-YIy72000000 mm4
Elastic Section Modulus about X-XSx1034000 mm3
Elastic Section Modulus about Y-YSy472000 mm3
Plastic Section Modulus about X-XZx1852000 mm3
Plastic Section Modulus about Y-YZy742000 mm3
St. Venant Torsional ConstantJ3829000 mm4
Warping Torsion ConstantCw21000000000 mm6
Self Weight of sectionWeight135 kg/m

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

A WT18X91 steel section is a standard North American steel section in the WT - Tee Sections category. It weighs 91 lb/ft and has a cross sectional area of 26.8 in2. The height and width of the section are 18.2 in and 12.1 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