Dimensions and section properties for W21X83

Structural sectional properties for a W21X83 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW21X83
Cross Sectional AreaA24.4 in2
Section Widthb8.36 in
Section Depthd21.4 in
Flange thicknesstf0.835 in
Web thicknesstw0.515 in
Radius of Gyration about X-Xrx8.67 in
Radius of Gyrations about Y-Yry1.83 in
Moment of Inertia about X-XIx1830 in4
Moment of Intertia about Y-YIy81.4 in4
Elastic Section Modulus about X-XSx171 in3
Elastic Section Modulus about Y-YSy19.5 in3
Plastic Section Modulus about X-XZx196 in3
Plastic Section Modulus about Y-YZy30.5 in3
St. Venant Torsional ConstantJ4.34 in4
Warping Torsion ConstantCw8630 in6
Self Weight of sectionWeight83 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW21X83
Cross Sectional AreaA15742 mm2
Section Widthb212 mm
Section Depthd544 mm
Flange thicknesstf21.2 mm
Web thicknesstw13.1 mm
Radius of Gyration about X-Xrx220 mm
Radius of Gyrations about Y-Yry46 mm
Moment of Inertia about X-XIx762000000 mm4
Moment of Intertia about Y-YIy34000000 mm4
Elastic Section Modulus about X-XSx2802000 mm3
Elastic Section Modulus about Y-YSy320000 mm3
Plastic Section Modulus about X-XZx3212000 mm3
Plastic Section Modulus about Y-YZy500000 mm3
St. Venant Torsional ConstantJ1806000 mm4
Warping Torsion ConstantCw2317000000000 mm6
Self Weight of sectionWeight124 kg/m

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

A W21X83 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 83 lb/ft and has a cross sectional area of 24.4 in2. The height and width of the section are 21.4 in and 8.36 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