Dimensions and section properties for C9X20

Structural sectional properties for a C9X20 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeC
Section NameNameC9X20
Cross Sectional AreaA5.87 in2
Section Widthb2.65 in
Section Depthd9 in
Flange thicknesstf0.413 in
Web thicknesstw0.448 in
Radius of Gyration about X-Xrx3.22 in
Radius of Gyrations about Y-Yry0.64 in
Moment of Inertia about X-XIx60.9 in4
Moment of Intertia about Y-YIy2.41 in4
Elastic Section Modulus about X-XSx13.5 in3
Elastic Section Modulus about Y-YSy1.17 in3
Plastic Section Modulus about X-XZx16.9 in3
Plastic Section Modulus about Y-YZy2.46 in3
St. Venant Torsional ConstantJ0.427 in4
Warping Torsion ConstantCw39.4 in6
Self Weight of sectionWeight20 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeC
Section NameNameC9X20
Cross Sectional AreaA3787 mm2
Section Widthb67 mm
Section Depthd229 mm
Flange thicknesstf10.5 mm
Web thicknesstw11.4 mm
Radius of Gyration about X-Xrx82 mm
Radius of Gyrations about Y-Yry16 mm
Moment of Inertia about X-XIx25000000 mm4
Moment of Intertia about Y-YIy1000000 mm4
Elastic Section Modulus about X-XSx221000 mm3
Elastic Section Modulus about Y-YSy19000 mm3
Plastic Section Modulus about X-XZx277000 mm3
Plastic Section Modulus about Y-YZy40000 mm3
St. Venant Torsional ConstantJ178000 mm4
Warping Torsion ConstantCw11000000000 mm6
Self Weight of sectionWeight30 kg/m

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

A C9X20 steel section is a standard North American steel section in the C - Channel category. It weighs 20 lb/ft and has a cross sectional area of 5.87 in2. The height and width of the section are 9 in and 2.65 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