Dimensions and section properties for W18X65

Structural sectional properties for a W18X65 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW18X65
Cross Sectional AreaA19.1 in2
Section Widthb7.59 in
Section Depthd18.4 in
Flange thicknesstf0.75 in
Web thicknesstw0.45 in
Radius of Gyration about X-Xrx7.49 in
Radius of Gyrations about Y-Yry1.69 in
Moment of Inertia about X-XIx1070 in4
Moment of Intertia about Y-YIy54.8 in4
Elastic Section Modulus about X-XSx117 in3
Elastic Section Modulus about Y-YSy14.4 in3
Plastic Section Modulus about X-XZx133 in3
Plastic Section Modulus about Y-YZy22.5 in3
St. Venant Torsional ConstantJ2.73 in4
Warping Torsion ConstantCw4240 in6
Self Weight of sectionWeight65 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW18X65
Cross Sectional AreaA12323 mm2
Section Widthb193 mm
Section Depthd467 mm
Flange thicknesstf19.1 mm
Web thicknesstw11.4 mm
Radius of Gyration about X-Xrx190 mm
Radius of Gyrations about Y-Yry43 mm
Moment of Inertia about X-XIx445000000 mm4
Moment of Intertia about Y-YIy23000000 mm4
Elastic Section Modulus about X-XSx1917000 mm3
Elastic Section Modulus about Y-YSy236000 mm3
Plastic Section Modulus about X-XZx2179000 mm3
Plastic Section Modulus about Y-YZy369000 mm3
St. Venant Torsional ConstantJ1136000 mm4
Warping Torsion ConstantCw1139000000000 mm6
Self Weight of sectionWeight97 kg/m

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

A W18X65 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 65 lb/ft and has a cross sectional area of 19.1 in2. The height and width of the section are 18.4 in and 7.59 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