Dimensions and section properties for C12X30

Structural sectional properties for a C12X30 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeC
Section NameNameC12X30
Cross Sectional AreaA8.81 in2
Section Widthb3.17 in
Section Depthd12 in
Flange thicknesstf0.501 in
Web thicknesstw0.51 in
Radius of Gyration about X-Xrx4.29 in
Radius of Gyrations about Y-Yry0.762 in
Moment of Inertia about X-XIx162 in4
Moment of Intertia about Y-YIy5.12 in4
Elastic Section Modulus about X-XSx27 in3
Elastic Section Modulus about Y-YSy2.05 in3
Plastic Section Modulus about X-XZx33.8 in3
Plastic Section Modulus about Y-YZy4.32 in3
St. Venant Torsional ConstantJ0.861 in4
Warping Torsion ConstantCw151 in6
Self Weight of sectionWeight30 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeC
Section NameNameC12X30
Cross Sectional AreaA5684 mm2
Section Widthb81 mm
Section Depthd305 mm
Flange thicknesstf12.7 mm
Web thicknesstw13 mm
Radius of Gyration about X-Xrx109 mm
Radius of Gyrations about Y-Yry19 mm
Moment of Inertia about X-XIx67000000 mm4
Moment of Intertia about Y-YIy2000000 mm4
Elastic Section Modulus about X-XSx442000 mm3
Elastic Section Modulus about Y-YSy34000 mm3
Plastic Section Modulus about X-XZx554000 mm3
Plastic Section Modulus about Y-YZy71000 mm3
St. Venant Torsional ConstantJ358000 mm4
Warping Torsion ConstantCw41000000000 mm6
Self Weight of sectionWeight45 kg/m

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

A C12X30 steel section is a standard North American steel section in the C - Channel category. It weighs 30 lb/ft and has a cross sectional area of 8.81 in2. The height and width of the section are 12 in and 3.17 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