Dimensions and section properties for W16X31

Structural sectional properties for a W16X31 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW16X31
Cross Sectional AreaA9.13 in2
Section Widthb5.53 in
Section Depthd15.9 in
Flange thicknesstf0.44 in
Web thicknesstw0.275 in
Radius of Gyration about X-Xrx6.41 in
Radius of Gyrations about Y-Yry1.17 in
Moment of Inertia about X-XIx375 in4
Moment of Intertia about Y-YIy12.4 in4
Elastic Section Modulus about X-XSx47.2 in3
Elastic Section Modulus about Y-YSy4.49 in3
Plastic Section Modulus about X-XZx54 in3
Plastic Section Modulus about Y-YZy7.03 in3
St. Venant Torsional ConstantJ0.461 in4
Warping Torsion ConstantCw739 in6
Self Weight of sectionWeight31 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW16X31
Cross Sectional AreaA5890 mm2
Section Widthb140 mm
Section Depthd404 mm
Flange thicknesstf11.2 mm
Web thicknesstw7 mm
Radius of Gyration about X-Xrx163 mm
Radius of Gyrations about Y-Yry30 mm
Moment of Inertia about X-XIx156000000 mm4
Moment of Intertia about Y-YIy5000000 mm4
Elastic Section Modulus about X-XSx773000 mm3
Elastic Section Modulus about Y-YSy74000 mm3
Plastic Section Modulus about X-XZx885000 mm3
Plastic Section Modulus about Y-YZy115000 mm3
St. Venant Torsional ConstantJ192000 mm4
Warping Torsion ConstantCw198000000000 mm6
Self Weight of sectionWeight46 kg/m

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

A W16X31 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 31 lb/ft and has a cross sectional area of 9.13 in2. The height and width of the section are 15.9 in and 5.53 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