Dimensions and section properties for WT12X31

Structural sectional properties for a WT12X31 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT12X31
Cross Sectional AreaA9.11 in2
Section Widthb7.04 in
Section Depthd11.9 in
Flange thicknesstf0.59 in
Web thicknesstw0.43 in
Radius of Gyration about X-Xrx3.79 in
Radius of Gyrations about Y-Yry1.38 in
Moment of Inertia about X-XIx131 in4
Moment of Intertia about Y-YIy17.2 in4
Elastic Section Modulus about X-XSx15.6 in3
Elastic Section Modulus about Y-YSy4.9 in3
Plastic Section Modulus about X-XZx28.4 in3
Plastic Section Modulus about Y-YZy7.85 in3
St. Venant Torsional ConstantJ0.85 in4
Warping Torsion ConstantCw3.92 in6
Self Weight of sectionWeight31 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeWT
Section NameNameWT12X31
Cross Sectional AreaA5877 mm2
Section Widthb179 mm
Section Depthd302 mm
Flange thicknesstf15 mm
Web thicknesstw10.9 mm
Radius of Gyration about X-Xrx96 mm
Radius of Gyrations about Y-Yry35 mm
Moment of Inertia about X-XIx55000000 mm4
Moment of Intertia about Y-YIy7000000 mm4
Elastic Section Modulus about X-XSx256000 mm3
Elastic Section Modulus about Y-YSy80000 mm3
Plastic Section Modulus about X-XZx465000 mm3
Plastic Section Modulus about Y-YZy129000 mm3
St. Venant Torsional ConstantJ354000 mm4
Warping Torsion ConstantCw1000000000 mm6
Self Weight of sectionWeight46 kg/m

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

A WT12X31 steel section is a standard North American steel section in the WT - Tee Sections category. It weighs 31 lb/ft and has a cross sectional area of 9.11 in2. The height and width of the section are 11.9 in and 7.04 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