Section properties for W18X40
Structural sectional properties for a W18X40 standard steel section
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W18X40 |
| Cross Sectional Area | A | 11.8 in2 |
| Section Width | b | 6.02 in |
| Section Depth | d | 17.9 in |
| Flange thickness | tf | 0.525 in |
| Web thickness | tw | 0.315 in |
| Radius of Gyration about X-X | rx | 7.21 in |
| Radius of Gyrations about Y-Y | ry | 1.27 in |
| Moment of Inertia about X-X | Ix | 612 in4 |
| Moment of Intertia about Y-Y | Iy | 19.1 in4 |
| Elastic Section Modulus about X-X | Sx | 68.4 in3 |
| Elastic Section Modulus about Y-Y | Sy | 6.35 in3 |
| Plastic Section Modulus about X-X | Zx | 78.4 in3 |
| Plastic Section Modulus about Y-Y | Zy | 10 in3 |
| St. Venant Torsional Constant | J | 0.81 in4 |
| Warping Torsion Constant | Cw | 1440 in6 |
| Self Weight of section per foot | Weight | 40 lb/ft |
A W18X40 steel section is a standard North American steel section in the W - Wide Flange category. It weighs 40 lb/ft and has a cross sectional area of 11.8 in2. The height and width of the section are 17.9 in and 6.02 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
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