Dimensions and section properties for ST12X50

Structural sectional properties for a ST12X50 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeST
Section NameNameST12X50
Cross Sectional AreaA14.7 in2
Section Widthb7.25 in
Section Depthd12 in
Flange thicknesstf0.87 in
Web thicknesstw0.745 in
Radius of Gyration about X-Xrx3.83 in
Radius of Gyrations about Y-Yry1.27 in
Moment of Inertia about X-XIx215 in4
Moment of Intertia about Y-YIy23.7 in4
Elastic Section Modulus about X-XSx26.3 in3
Elastic Section Modulus about Y-YSy6.55 in3
Plastic Section Modulus about X-XZx47.5 in3
Plastic Section Modulus about Y-YZy12 in3
St. Venant Torsional ConstantJ3.76 in4
Warping Torsion ConstantCw19.5 in6
Self Weight of sectionWeight50 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeST
Section NameNameST12X50
Cross Sectional AreaA9484 mm2
Section Widthb184 mm
Section Depthd305 mm
Flange thicknesstf22.1 mm
Web thicknesstw18.9 mm
Radius of Gyration about X-Xrx97 mm
Radius of Gyrations about Y-Yry32 mm
Moment of Inertia about X-XIx89000000 mm4
Moment of Intertia about Y-YIy10000000 mm4
Elastic Section Modulus about X-XSx431000 mm3
Elastic Section Modulus about Y-YSy107000 mm3
Plastic Section Modulus about X-XZx778000 mm3
Plastic Section Modulus about Y-YZy197000 mm3
St. Venant Torsional ConstantJ1565000 mm4
Warping Torsion ConstantCw5000000000 mm6
Self Weight of sectionWeight74 kg/m

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

A ST12X50 steel section is a standard North American steel section in the ST - Standard Tee Sections category. It weighs 50 lb/ft and has a cross sectional area of 14.7 in2. The height and width of the section are 12 in and 7.25 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