Dimensions and section properties for W21X201

Structural sectional properties for a W21X201 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW21X201
Cross Sectional AreaA59.3 in2
Section Widthb12.6 in
Section Depthd23 in
Flange thicknesstf1.63 in
Web thicknesstw0.91 in
Radius of Gyration about X-Xrx9.47 in
Radius of Gyrations about Y-Yry3.02 in
Moment of Inertia about X-XIx5310 in4
Moment of Intertia about Y-YIy542 in4
Elastic Section Modulus about X-XSx461 in3
Elastic Section Modulus about Y-YSy86.1 in3
Plastic Section Modulus about X-XZx530 in3
Plastic Section Modulus about Y-YZy133 in3
St. Venant Torsional ConstantJ40.9 in4
Warping Torsion ConstantCw62000 in6
Self Weight of sectionWeight201 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW21X201
Cross Sectional AreaA38258 mm2
Section Widthb320 mm
Section Depthd584 mm
Flange thicknesstf41.4 mm
Web thicknesstw23.1 mm
Radius of Gyration about X-Xrx241 mm
Radius of Gyrations about Y-Yry77 mm
Moment of Inertia about X-XIx2210000000 mm4
Moment of Intertia about Y-YIy226000000 mm4
Elastic Section Modulus about X-XSx7554000 mm3
Elastic Section Modulus about Y-YSy1411000 mm3
Plastic Section Modulus about X-XZx8685000 mm3
Plastic Section Modulus about Y-YZy2179000 mm3
St. Venant Torsional ConstantJ17024000 mm4
Warping Torsion ConstantCw16649000000000 mm6
Self Weight of sectionWeight299 kg/m

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

A W21X201 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 201 lb/ft and has a cross sectional area of 59.3 in2. The height and width of the section are 23 in and 12.6 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