Dimensions and section properties for WT18X85

Structural sectional properties for a WT18X85 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT18X85
Cross Sectional AreaA25 in2
Section Widthb12 in
Section Depthd18.1 in
Flange thicknesstf1.1 in
Web thicknesstw0.68 in
Radius of Gyration about X-Xrx5.61 in
Radius of Gyrations about Y-Yry2.53 in
Moment of Inertia about X-XIx786 in4
Moment of Intertia about Y-YIy160 in4
Elastic Section Modulus about X-XSx58.9 in3
Elastic Section Modulus about Y-YSy26.6 in3
Plastic Section Modulus about X-XZx105 in3
Plastic Section Modulus about Y-YZy41.8 in3
St. Venant Torsional ConstantJ7.51 in4
Warping Torsion ConstantCw63.2 in6
Self Weight of sectionWeight85 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT18X85
Cross Sectional AreaA16129 mm2
Section Widthb305 mm
Section Depthd460 mm
Flange thicknesstf27.9 mm
Web thicknesstw17.3 mm
Radius of Gyration about X-Xrx142 mm
Radius of Gyrations about Y-Yry64 mm
Moment of Inertia about X-XIx327000000 mm4
Moment of Intertia about Y-YIy67000000 mm4
Elastic Section Modulus about X-XSx965000 mm3
Elastic Section Modulus about Y-YSy436000 mm3
Plastic Section Modulus about X-XZx1721000 mm3
Plastic Section Modulus about Y-YZy685000 mm3
St. Venant Torsional ConstantJ3126000 mm4
Warping Torsion ConstantCw17000000000 mm6
Self Weight of sectionWeight126 kg/m

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

A WT18X85 steel section is a standard North American steel section in the WT - Tee Sections category. It weighs 85 lb/ft and has a cross sectional area of 25 in2. The height and width of the section are 18.1 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