Dimensions and section properties for W18X158

Structural sectional properties for a W18X158 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW18X158
Cross Sectional AreaA46.3 in2
Section Widthb11.3 in
Section Depthd19.7 in
Flange thicknesstf1.44 in
Web thicknesstw0.81 in
Radius of Gyration about X-Xrx8.12 in
Radius of Gyrations about Y-Yry2.74 in
Moment of Inertia about X-XIx3060 in4
Moment of Intertia about Y-YIy347 in4
Elastic Section Modulus about X-XSx310 in3
Elastic Section Modulus about Y-YSy61.4 in3
Plastic Section Modulus about X-XZx356 in3
Plastic Section Modulus about Y-YZy94.8 in3
St. Venant Torsional ConstantJ25.2 in4
Warping Torsion ConstantCw29000 in6
Self Weight of sectionWeight158 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW18X158
Cross Sectional AreaA29871 mm2
Section Widthb287 mm
Section Depthd500 mm
Flange thicknesstf36.6 mm
Web thicknesstw20.6 mm
Radius of Gyration about X-Xrx206 mm
Radius of Gyrations about Y-Yry70 mm
Moment of Inertia about X-XIx1274000000 mm4
Moment of Intertia about Y-YIy144000000 mm4
Elastic Section Modulus about X-XSx5080000 mm3
Elastic Section Modulus about Y-YSy1006000 mm3
Plastic Section Modulus about X-XZx5834000 mm3
Plastic Section Modulus about Y-YZy1553000 mm3
St. Venant Torsional ConstantJ10489000 mm4
Warping Torsion ConstantCw7788000000000 mm6
Self Weight of sectionWeight235 kg/m

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

A W18X158 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 158 lb/ft and has a cross sectional area of 46.3 in2. The height and width of the section are 19.7 in and 11.3 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