Dimensions and section properties for W12X72

Structural sectional properties for a W12X72 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW12X72
Cross Sectional AreaA21.1 in2
Section Widthb12 in
Section Depthd12.3 in
Flange thicknesstf0.67 in
Web thicknesstw0.43 in
Radius of Gyration about X-Xrx5.31 in
Radius of Gyrations about Y-Yry3.04 in
Moment of Inertia about X-XIx597 in4
Moment of Intertia about Y-YIy195 in4
Elastic Section Modulus about X-XSx97.4 in3
Elastic Section Modulus about Y-YSy32.4 in3
Plastic Section Modulus about X-XZx108 in3
Plastic Section Modulus about Y-YZy49.2 in3
St. Venant Torsional ConstantJ2.93 in4
Warping Torsion ConstantCw6540 in6
Self Weight of sectionWeight72 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW12X72
Cross Sectional AreaA13613 mm2
Section Widthb305 mm
Section Depthd312 mm
Flange thicknesstf17 mm
Web thicknesstw10.9 mm
Radius of Gyration about X-Xrx135 mm
Radius of Gyrations about Y-Yry77 mm
Moment of Inertia about X-XIx248000000 mm4
Moment of Intertia about Y-YIy81000000 mm4
Elastic Section Modulus about X-XSx1596000 mm3
Elastic Section Modulus about Y-YSy531000 mm3
Plastic Section Modulus about X-XZx1770000 mm3
Plastic Section Modulus about Y-YZy806000 mm3
St. Venant Torsional ConstantJ1220000 mm4
Warping Torsion ConstantCw1756000000000 mm6
Self Weight of sectionWeight107 kg/m

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

A W12X72 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 72 lb/ft and has a cross sectional area of 21.1 in2. The height and width of the section are 12.3 in and 12 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