Dimensions and section properties for MC12X31

Structural sectional properties for a MC12X31 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeMC
Section NameNameMC12X31
Cross Sectional AreaA9.12 in2
Section Widthb3.67 in
Section Depthd12 in
Flange thicknesstf0.7 in
Web thicknesstw0.37 in
Radius of Gyration about X-Xrx4.71 in
Radius of Gyrations about Y-Yry1.11 in
Moment of Inertia about X-XIx202 in4
Moment of Intertia about Y-YIy11.3 in4
Elastic Section Modulus about X-XSx33.7 in3
Elastic Section Modulus about Y-YSy4.37 in3
Plastic Section Modulus about X-XZx39.7 in3
Plastic Section Modulus about Y-YZy8.15 in3
St. Venant Torsional ConstantJ1 in4
Warping Torsion ConstantCw267 in6
Self Weight of sectionWeight31 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeMC
Section NameNameMC12X31
Cross Sectional AreaA5884 mm2
Section Widthb93 mm
Section Depthd305 mm
Flange thicknesstf17.8 mm
Web thicknesstw9.4 mm
Radius of Gyration about X-Xrx120 mm
Radius of Gyrations about Y-Yry28 mm
Moment of Inertia about X-XIx84000000 mm4
Moment of Intertia about Y-YIy5000000 mm4
Elastic Section Modulus about X-XSx552000 mm3
Elastic Section Modulus about Y-YSy72000 mm3
Plastic Section Modulus about X-XZx651000 mm3
Plastic Section Modulus about Y-YZy134000 mm3
St. Venant Torsional ConstantJ416000 mm4
Warping Torsion ConstantCw72000000000 mm6
Self Weight of sectionWeight46 kg/m

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

A MC12X31 steel section is a standard North American steel section in the MC - Misc Channels category. It weighs 31 lb/ft and has a cross sectional area of 9.12 in2. The height and width of the section are 12 in and 3.67 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