Dimensions and section properties for W8X13

Structural sectional properties for a W8X13 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW8X13
Cross Sectional AreaA3.84 in2
Section Widthb4 in
Section Depthd7.99 in
Flange thicknesstf0.255 in
Web thicknesstw0.23 in
Radius of Gyration about X-Xrx3.21 in
Radius of Gyrations about Y-Yry0.843 in
Moment of Inertia about X-XIx39.6 in4
Moment of Intertia about Y-YIy2.73 in4
Elastic Section Modulus about X-XSx9.91 in3
Elastic Section Modulus about Y-YSy1.37 in3
Plastic Section Modulus about X-XZx11.4 in3
Plastic Section Modulus about Y-YZy2.15 in3
St. Venant Torsional ConstantJ0.0871 in4
Warping Torsion ConstantCw40.8 in6
Self Weight of sectionWeight13 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW8X13
Cross Sectional AreaA2477 mm2
Section Widthb102 mm
Section Depthd203 mm
Flange thicknesstf6.5 mm
Web thicknesstw5.8 mm
Radius of Gyration about X-Xrx82 mm
Radius of Gyrations about Y-Yry21 mm
Moment of Inertia about X-XIx16000000 mm4
Moment of Intertia about Y-YIy1000000 mm4
Elastic Section Modulus about X-XSx162000 mm3
Elastic Section Modulus about Y-YSy22000 mm3
Plastic Section Modulus about X-XZx187000 mm3
Plastic Section Modulus about Y-YZy35000 mm3
St. Venant Torsional ConstantJ36000 mm4
Warping Torsion ConstantCw11000000000 mm6
Self Weight of sectionWeight19 kg/m

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

A W8X13 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 13 lb/ft and has a cross sectional area of 3.84 in2. The height and width of the section are 7.99 in and 4 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