Dimensions and section properties for W12X30

Structural sectional properties for a W12X30 standard steel section

steel section diagram

US Customary Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW12X30
Cross Sectional AreaA8.79 in2
Section Widthb6.52 in
Section Depthd12.3 in
Flange thicknesstf0.44 in
Web thicknesstw0.26 in
Radius of Gyration about X-Xrx5.21 in
Radius of Gyrations about Y-Yry1.52 in
Moment of Inertia about X-XIx238 in4
Moment of Intertia about Y-YIy20.3 in4
Elastic Section Modulus about X-XSx38.6 in3
Elastic Section Modulus about Y-YSy6.24 in3
Plastic Section Modulus about X-XZx43.1 in3
Plastic Section Modulus about Y-YZy9.56 in3
St. Venant Torsional ConstantJ0.457 in4
Warping Torsion ConstantCw720 in6
Self Weight of sectionWeight30 lb/ft

Metric Units

DescriptionSymbolValue
Shape Category / DesignationTypeW
Section NameNameW12X30
Cross Sectional AreaA5671 mm2
Section Widthb166 mm
Section Depthd312 mm
Flange thicknesstf11.2 mm
Web thicknesstw6.6 mm
Radius of Gyration about X-Xrx132 mm
Radius of Gyrations about Y-Yry39 mm
Moment of Inertia about X-XIx99000000 mm4
Moment of Intertia about Y-YIy8000000 mm4
Elastic Section Modulus about X-XSx633000 mm3
Elastic Section Modulus about Y-YSy102000 mm3
Plastic Section Modulus about X-XZx706000 mm3
Plastic Section Modulus about Y-YZy157000 mm3
St. Venant Torsional ConstantJ190000 mm4
Warping Torsion ConstantCw193000000000 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 W12X30 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 30 lb/ft and has a cross sectional area of 8.79 in2. The height and width of the section are 12.3 in and 6.52 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