Dimensions and section properties for HP16X121

Structural sectional properties for a HP16X121 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeHP
Section NameNameHP16X121
Cross Sectional AreaA35.8 in2
Section Widthb15.9 in
Section Depthd15.8 in
Flange thicknesstf0.75 in
Web thicknesstw0.75 in
Radius of Gyration about X-Xrx6.66 in
Radius of Gyrations about Y-Yry3.75 in
Moment of Inertia about X-XIx1590 in4
Moment of Intertia about Y-YIy504 in4
Elastic Section Modulus about X-XSx201 in3
Elastic Section Modulus about Y-YSy63.4 in3
Plastic Section Modulus about X-XZx226 in3
Plastic Section Modulus about Y-YZy97.6 in3
St. Venant Torsional ConstantJ8.35 in4
Warping Torsion ConstantCw28500 in6
Self Weight of sectionWeight121 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeHP
Section NameNameHP16X121
Cross Sectional AreaA23097 mm2
Section Widthb404 mm
Section Depthd401 mm
Flange thicknesstf19.1 mm
Web thicknesstw19.1 mm
Radius of Gyration about X-Xrx169 mm
Radius of Gyrations about Y-Yry95 mm
Moment of Inertia about X-XIx662000000 mm4
Moment of Intertia about Y-YIy210000000 mm4
Elastic Section Modulus about X-XSx3294000 mm3
Elastic Section Modulus about Y-YSy1039000 mm3
Plastic Section Modulus about X-XZx3703000 mm3
Plastic Section Modulus about Y-YZy1599000 mm3
St. Venant Torsional ConstantJ3476000 mm4
Warping Torsion ConstantCw7653000000000 mm6
Self Weight of sectionWeight180 kg/m

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

A HP16X121 steel section is a standard North American steel section in the HP - Hollow Pipe category. It weighs 121 lb/ft and has a cross sectional area of 35.8 in2. The height and width of the section are 15.8 in and 15.9 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