Dimensions and section properties for 2L8X4X0.4375SLBB

Structural sectional properties for a 2L8X4X0.4375SLBB standard steel section

US Customary Units

Description	Symbol	Value
Shape Category / Designation	Type	2L
Section Name	Name	2L8X4X0.4375SLBB
Cross Sectional Area	A	10.2 in²
Section Width	b	8 in
Section Depth	d	4 in
Flange thickness	tf	0.438 in
Web thickness	tw	0.438 in
Radius of Gyration about X-X	rx	1.09 in
Radius of Gyrations about Y-Y	ry	3.82 in
Moment of Inertia about X-X	Ix	12.1 in⁴
Moment of Intertia about Y-Y	Iy	149 in⁴
Elastic Section Modulus about X-X	Sx	3.81 in³
Elastic Section Modulus about Y-Y	Sy	18.6 in³
Plastic Section Modulus about X-X	Zx	6.85 in³
Plastic Section Modulus about Y-Y	Zy	28.7 in³
Self Weight of section	Weight	34.4 lb/ft

Metric Units

Description	Symbol	Value
Shape Category / Designation	Type	2L
Section Name	Name	2L8X4X0.4375SLBB
Cross Sectional Area	A	6581 mm²
Section Width	b	203 mm
Section Depth	d	102 mm
Flange thickness	tf	11.1 mm
Web thickness	tw	11.1 mm
Radius of Gyration about X-X	rx	28 mm
Radius of Gyrations about Y-Y	ry	97 mm
Moment of Inertia about X-X	Ix	5000000 mm⁴
Moment of Intertia about Y-Y	Iy	62000000 mm⁴
Elastic Section Modulus about X-X	Sx	62000 mm³
Elastic Section Modulus about Y-Y	Sy	305000 mm³
Plastic Section Modulus about X-X	Zx	112000 mm³
Plastic Section Modulus about Y-Y	Zy	470000 mm³
St. Venant Torsional Constant	J	NaN mm⁴
Warping Torsion Constant	Cw	NaN mm⁶
Self Weight of section	Weight	51 kg/m

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

A 2L8X4X0.4375SLBB steel section is a standard North American steel section in the 2L - Doubled Angles category. It weighs 34.4 lb/ft and has a cross sectional area of 10.2 in². The height and width of the section are 4 in and 8 in respectively.

The section has a tensile yield capacity of:

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The section has a flexural plastic moment capacity of:

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The section has a flexural elastic moment capacity of:

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