Dimensions and section properties for W21X44

Structural sectional properties for a W21X44 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW21X44
Cross Sectional AreaA13 in2
Section Widthb6.5 in
Section Depthd20.7 in
Flange thicknesstf0.45 in
Web thicknesstw0.35 in
Radius of Gyration about X-Xrx8.06 in
Radius of Gyrations about Y-Yry1.26 in
Moment of Inertia about X-XIx843 in4
Moment of Intertia about Y-YIy20.7 in4
Elastic Section Modulus about X-XSx81.6 in3
Elastic Section Modulus about Y-YSy6.37 in3
Plastic Section Modulus about X-XZx95.4 in3
Plastic Section Modulus about Y-YZy10.2 in3
St. Venant Torsional ConstantJ0.77 in4
Warping Torsion ConstantCw2110 in6
Self Weight of sectionWeight44 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW21X44
Cross Sectional AreaA8387 mm2
Section Widthb165 mm
Section Depthd526 mm
Flange thicknesstf11.4 mm
Web thicknesstw8.9 mm
Radius of Gyration about X-Xrx205 mm
Radius of Gyrations about Y-Yry32 mm
Moment of Inertia about X-XIx351000000 mm4
Moment of Intertia about Y-YIy9000000 mm4
Elastic Section Modulus about X-XSx1337000 mm3
Elastic Section Modulus about Y-YSy104000 mm3
Plastic Section Modulus about X-XZx1563000 mm3
Plastic Section Modulus about Y-YZy167000 mm3
St. Venant Torsional ConstantJ320000 mm4
Warping Torsion ConstantCw567000000000 mm6
Self Weight of sectionWeight65 kg/m

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

A W21X44 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 44 lb/ft and has a cross sectional area of 13 in2. The height and width of the section are 20.7 in and 6.5 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