Section properties for W18X258

Structural sectional properties for a W18X258 standard steel section

steel section diagram
Shape Category / DesignationTypeW
Section NameNameW18X258
Cross Sectional AreaA76 in2
Section Widthb11.8 in
Section Depthd21.5 in
Flange thicknesstf2.3 in
Web thicknesstw1.28 in
Radius of Gyration about X-Xrx8.53 in
Radius of Gyrations about Y-Yry2.88 in
Moment of Inertia about X-XIx5510 in4
Moment of Intertia about Y-YIy628 in4
Elastic Section Modulus about X-XSx514 in3
Elastic Section Modulus about Y-YSy107 in3
Plastic Section Modulus about X-XZx611 in3
Plastic Section Modulus about Y-YZy166 in3
St. Venant Torsional ConstantJ103 in4
Warping Torsion ConstantCw57600 in6
Self Weight of section per footWeight258 lb/ft

A W18X258 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 258 lb/ft and has a cross sectional area of 76 in2. The height and width of the section are 21.5 in and 11.8 in respectively.

The section has a tensile yield capacity of:


The section has a flexural plastic moment capacity of:


The section has a flexural elastic moment capacity of: