Dimensions and section properties for W18X143

Structural sectional properties for a W18X143 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW18X143
Cross Sectional AreaA42 in2
Section Widthb11.2 in
Section Depthd19.5 in
Flange thicknesstf1.32 in
Web thicknesstw0.73 in
Radius of Gyration about X-Xrx8.09 in
Radius of Gyrations about Y-Yry2.72 in
Moment of Inertia about X-XIx2750 in4
Moment of Intertia about Y-YIy311 in4
Elastic Section Modulus about X-XSx282 in3
Elastic Section Modulus about Y-YSy55.5 in3
Plastic Section Modulus about X-XZx322 in3
Plastic Section Modulus about Y-YZy85.4 in3
St. Venant Torsional ConstantJ19.2 in4
Warping Torsion ConstantCw25700 in6
Self Weight of sectionWeight143 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW18X143
Cross Sectional AreaA27097 mm2
Section Widthb284 mm
Section Depthd495 mm
Flange thicknesstf33.5 mm
Web thicknesstw18.5 mm
Radius of Gyration about X-Xrx205 mm
Radius of Gyrations about Y-Yry69 mm
Moment of Inertia about X-XIx1145000000 mm4
Moment of Intertia about Y-YIy129000000 mm4
Elastic Section Modulus about X-XSx4621000 mm3
Elastic Section Modulus about Y-YSy909000 mm3
Plastic Section Modulus about X-XZx5277000 mm3
Plastic Section Modulus about Y-YZy1399000 mm3
St. Venant Torsional ConstantJ7992000 mm4
Warping Torsion ConstantCw6901000000000 mm6
Self Weight of sectionWeight213 kg/m

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

A W18X143 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 143 lb/ft and has a cross sectional area of 42 in2. The height and width of the section are 19.5 in and 11.2 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