Dimensions and section properties for WT12X81

Structural sectional properties for a WT12X81 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT12X81
Cross Sectional AreaA23.9 in2
Section Widthb13 in
Section Depthd12.5 in
Flange thicknesstf1.22 in
Web thicknesstw0.705 in
Radius of Gyration about X-Xrx3.5 in
Radius of Gyrations about Y-Yry3.05 in
Moment of Inertia about X-XIx293 in4
Moment of Intertia about Y-YIy221 in4
Elastic Section Modulus about X-XSx29.9 in3
Elastic Section Modulus about Y-YSy34.2 in3
Plastic Section Modulus about X-XZx53.3 in3
Plastic Section Modulus about Y-YZy52.6 in3
St. Venant Torsional ConstantJ9.22 in4
Warping Torsion ConstantCw43.8 in6
Self Weight of sectionWeight81 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT12X81
Cross Sectional AreaA15419 mm2
Section Widthb330 mm
Section Depthd318 mm
Flange thicknesstf31 mm
Web thicknesstw17.9 mm
Radius of Gyration about X-Xrx89 mm
Radius of Gyrations about Y-Yry77 mm
Moment of Inertia about X-XIx122000000 mm4
Moment of Intertia about Y-YIy92000000 mm4
Elastic Section Modulus about X-XSx490000 mm3
Elastic Section Modulus about Y-YSy560000 mm3
Plastic Section Modulus about X-XZx873000 mm3
Plastic Section Modulus about Y-YZy862000 mm3
St. Venant Torsional ConstantJ3838000 mm4
Warping Torsion ConstantCw12000000000 mm6
Self Weight of sectionWeight121 kg/m

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

A WT12X81 steel section is a standard North American steel section in the WT - Tee Sections category. It weighs 81 lb/ft and has a cross sectional area of 23.9 in2. The height and width of the section are 12.5 in and 13 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