Dimensions and section properties for MC8X20

Structural sectional properties for a MC8X20 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeMC
Section NameNameMC8X20
Cross Sectional AreaA5.87 in2
Section Widthb3.03 in
Section Depthd8 in
Flange thicknesstf0.5 in
Web thicknesstw0.4 in
Radius of Gyration about X-Xrx3.04 in
Radius of Gyrations about Y-Yry0.867 in
Moment of Inertia about X-XIx54.4 in4
Moment of Intertia about Y-YIy4.42 in4
Elastic Section Modulus about X-XSx13.6 in3
Elastic Section Modulus about Y-YSy2.02 in3
Plastic Section Modulus about X-XZx16.4 in3
Plastic Section Modulus about Y-YZy3.86 in3
St. Venant Torsional ConstantJ0.441 in4
Warping Torsion ConstantCw47.8 in6
Self Weight of sectionWeight20 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeMC
Section NameNameMC8X20
Cross Sectional AreaA3787 mm2
Section Widthb77 mm
Section Depthd203 mm
Flange thicknesstf12.7 mm
Web thicknesstw10.2 mm
Radius of Gyration about X-Xrx77 mm
Radius of Gyrations about Y-Yry22 mm
Moment of Inertia about X-XIx23000000 mm4
Moment of Intertia about Y-YIy2000000 mm4
Elastic Section Modulus about X-XSx223000 mm3
Elastic Section Modulus about Y-YSy33000 mm3
Plastic Section Modulus about X-XZx269000 mm3
Plastic Section Modulus about Y-YZy63000 mm3
St. Venant Torsional ConstantJ184000 mm4
Warping Torsion ConstantCw13000000000 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 MC8X20 steel section is a standard North American steel section in the MC - Misc Channels category. It weighs 20 lb/ft and has a cross sectional area of 5.87 in2. The height and width of the section are 8 in and 3.03 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