Dimensions and section properties for W30X99

Structural sectional properties for a W30X99 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW30X99
Cross Sectional AreaA29 in2
Section Widthb10.5 in
Section Depthd29.7 in
Flange thicknesstf0.67 in
Web thicknesstw0.52 in
Radius of Gyration about X-Xrx11.7 in
Radius of Gyrations about Y-Yry2.1 in
Moment of Inertia about X-XIx3990 in4
Moment of Intertia about Y-YIy128 in4
Elastic Section Modulus about X-XSx269 in3
Elastic Section Modulus about Y-YSy24.5 in3
Plastic Section Modulus about X-XZx312 in3
Plastic Section Modulus about Y-YZy38.6 in3
St. Venant Torsional ConstantJ3.77 in4
Warping Torsion ConstantCw26800 in6
Self Weight of sectionWeight99 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW30X99
Cross Sectional AreaA18710 mm2
Section Widthb267 mm
Section Depthd754 mm
Flange thicknesstf17 mm
Web thicknesstw13.2 mm
Radius of Gyration about X-Xrx297 mm
Radius of Gyrations about Y-Yry53 mm
Moment of Inertia about X-XIx1661000000 mm4
Moment of Intertia about Y-YIy53000000 mm4
Elastic Section Modulus about X-XSx4408000 mm3
Elastic Section Modulus about Y-YSy401000 mm3
Plastic Section Modulus about X-XZx5113000 mm3
Plastic Section Modulus about Y-YZy633000 mm3
St. Venant Torsional ConstantJ1569000 mm4
Warping Torsion ConstantCw7197000000000 mm6
Self Weight of sectionWeight147 kg/m

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

A W30X99 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 99 lb/ft and has a cross sectional area of 29 in2. The height and width of the section are 29.7 in and 10.5 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