Dimensions and section properties for HP12X84

Structural sectional properties for a HP12X84 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeHP
Section NameNameHP12X84
Cross Sectional AreaA24.6 in2
Section Widthb12.3 in
Section Depthd12.3 in
Flange thicknesstf0.685 in
Web thicknesstw0.685 in
Radius of Gyration about X-Xrx5.14 in
Radius of Gyrations about Y-Yry2.94 in
Moment of Inertia about X-XIx650 in4
Moment of Intertia about Y-YIy213 in4
Elastic Section Modulus about X-XSx106 in3
Elastic Section Modulus about Y-YSy34.6 in3
Plastic Section Modulus about X-XZx120 in3
Plastic Section Modulus about Y-YZy53.2 in3
St. Venant Torsional ConstantJ4.24 in4
Warping Torsion ConstantCw7140 in6
Self Weight of sectionWeight84 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeHP
Section NameNameHP12X84
Cross Sectional AreaA15871 mm2
Section Widthb312 mm
Section Depthd312 mm
Flange thicknesstf17.4 mm
Web thicknesstw17.4 mm
Radius of Gyration about X-Xrx131 mm
Radius of Gyrations about Y-Yry75 mm
Moment of Inertia about X-XIx271000000 mm4
Moment of Intertia about Y-YIy89000000 mm4
Elastic Section Modulus about X-XSx1737000 mm3
Elastic Section Modulus about Y-YSy567000 mm3
Plastic Section Modulus about X-XZx1966000 mm3
Plastic Section Modulus about Y-YZy872000 mm3
St. Venant Torsional ConstantJ1765000 mm4
Warping Torsion ConstantCw1917000000000 mm6
Self Weight of sectionWeight125 kg/m

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

A HP12X84 steel section is a standard North American steel section in the HP - Hollow Pipe category. It weighs 84 lb/ft and has a cross sectional area of 24.6 in2. The height and width of the section are 12.3 in and 12.3 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