Dimensions and section properties for WT18X105

Structural sectional properties for a WT18X105 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT18X105
Cross Sectional AreaA30.9 in2
Section Widthb12.2 in
Section Depthd18.3 in
Flange thicknesstf1.36 in
Web thicknesstw0.83 in
Radius of Gyration about X-Xrx5.65 in
Radius of Gyrations about Y-Yry2.58 in
Moment of Inertia about X-XIx985 in4
Moment of Intertia about Y-YIy206 in4
Elastic Section Modulus about X-XSx73.1 in3
Elastic Section Modulus about Y-YSy33.8 in3
Plastic Section Modulus about X-XZx131 in3
Plastic Section Modulus about Y-YZy53.4 in3
St. Venant Torsional ConstantJ13.9 in4
Warping Torsion ConstantCw119 in6
Self Weight of sectionWeight105 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT18X105
Cross Sectional AreaA19935 mm2
Section Widthb310 mm
Section Depthd465 mm
Flange thicknesstf34.5 mm
Web thicknesstw21.1 mm
Radius of Gyration about X-Xrx144 mm
Radius of Gyrations about Y-Yry66 mm
Moment of Inertia about X-XIx410000000 mm4
Moment of Intertia about Y-YIy86000000 mm4
Elastic Section Modulus about X-XSx1198000 mm3
Elastic Section Modulus about Y-YSy554000 mm3
Plastic Section Modulus about X-XZx2147000 mm3
Plastic Section Modulus about Y-YZy875000 mm3
St. Venant Torsional ConstantJ5786000 mm4
Warping Torsion ConstantCw32000000000 mm6
Self Weight of sectionWeight156 kg/m

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

A WT18X105 steel section is a standard North American steel section in the WT - Tee Sections category. It weighs 105 lb/ft and has a cross sectional area of 30.9 in2. The height and width of the section are 18.3 in and 12.2 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