Dimensions and section properties for MC12X40

Structural sectional properties for a MC12X40 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeMC
Section NameNameMC12X40
Cross Sectional AreaA11.8 in2
Section Widthb3.89 in
Section Depthd12 in
Flange thicknesstf0.7 in
Web thicknesstw0.59 in
Radius of Gyration about X-Xrx4.46 in
Radius of Gyrations about Y-Yry1.1 in
Moment of Inertia about X-XIx234 in4
Moment of Intertia about Y-YIy14.2 in4
Elastic Section Modulus about X-XSx39 in3
Elastic Section Modulus about Y-YSy4.98 in3
Plastic Section Modulus about X-XZx47.7 in3
Plastic Section Modulus about Y-YZy9.31 in3
St. Venant Torsional ConstantJ1.69 in4
Warping Torsion ConstantCw336 in6
Self Weight of sectionWeight40 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeMC
Section NameNameMC12X40
Cross Sectional AreaA7613 mm2
Section Widthb99 mm
Section Depthd305 mm
Flange thicknesstf17.8 mm
Web thicknesstw15 mm
Radius of Gyration about X-Xrx113 mm
Radius of Gyrations about Y-Yry28 mm
Moment of Inertia about X-XIx97000000 mm4
Moment of Intertia about Y-YIy6000000 mm4
Elastic Section Modulus about X-XSx639000 mm3
Elastic Section Modulus about Y-YSy82000 mm3
Plastic Section Modulus about X-XZx782000 mm3
Plastic Section Modulus about Y-YZy153000 mm3
St. Venant Torsional ConstantJ703000 mm4
Warping Torsion ConstantCw90000000000 mm6
Self Weight of sectionWeight60 kg/m

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

A MC12X40 steel section is a standard North American steel section in the MC - Misc Channels category. It weighs 40 lb/ft and has a cross sectional area of 11.8 in2. The height and width of the section are 12 in and 3.89 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