Dimensions and section properties for HP18X204

Structural sectional properties for a HP18X204 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeHP
Section NameNameHP18X204
Cross Sectional AreaA60.2 in2
Section Widthb18.1 in
Section Depthd18.3 in
Flange thicknesstf1.13 in
Web thicknesstw1.13 in
Radius of Gyration about X-Xrx7.6 in
Radius of Gyrations about Y-Yry4.31 in
Moment of Inertia about X-XIx3480 in4
Moment of Intertia about Y-YIy1120 in4
Elastic Section Modulus about X-XSx380 in3
Elastic Section Modulus about Y-YSy124 in3
Plastic Section Modulus about X-XZx433 in3
Plastic Section Modulus about Y-YZy191 in3
St. Venant Torsional ConstantJ29.5 in4
Warping Torsion ConstantCw82500 in6
Self Weight of sectionWeight204 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeHP
Section NameNameHP18X204
Cross Sectional AreaA38839 mm2
Section Widthb460 mm
Section Depthd465 mm
Flange thicknesstf28.7 mm
Web thicknesstw28.7 mm
Radius of Gyration about X-Xrx193 mm
Radius of Gyrations about Y-Yry109 mm
Moment of Inertia about X-XIx1448000000 mm4
Moment of Intertia about Y-YIy466000000 mm4
Elastic Section Modulus about X-XSx6227000 mm3
Elastic Section Modulus about Y-YSy2032000 mm3
Plastic Section Modulus about X-XZx7096000 mm3
Plastic Section Modulus about Y-YZy3130000 mm3
St. Venant Torsional ConstantJ12279000 mm4
Warping Torsion ConstantCw22154000000000 mm6
Self Weight of sectionWeight304 kg/m

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

A HP18X204 steel section is a standard North American steel section in the HP - Hollow Pipe category. It weighs 204 lb/ft and has a cross sectional area of 60.2 in2. The height and width of the section are 18.3 in and 18.1 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