Dimensions and section properties for W18X158
Structural sectional properties for a W18X158 standard steel section
US Customary Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W18X158 |
| Cross Sectional Area | A | 46.3 in2 |
| Section Width | b | 11.3 in |
| Section Depth | d | 19.7 in |
| Flange thickness | tf | 1.44 in |
| Web thickness | tw | 0.81 in |
| Radius of Gyration about X-X | rx | 8.12 in |
| Radius of Gyrations about Y-Y | ry | 2.74 in |
| Moment of Inertia about X-X | Ix | 3060 in4 |
| Moment of Intertia about Y-Y | Iy | 347 in4 |
| Elastic Section Modulus about X-X | Sx | 310 in3 |
| Elastic Section Modulus about Y-Y | Sy | 61.4 in3 |
| Plastic Section Modulus about X-X | Zx | 356 in3 |
| Plastic Section Modulus about Y-Y | Zy | 94.8 in3 |
| St. Venant Torsional Constant | J | 25.2 in4 |
| Warping Torsion Constant | Cw | 29000 in6 |
| Self Weight of section | Weight | 158 lb/ft |
Metric Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W18X158 |
| Cross Sectional Area | A | 29871 mm2 |
| Section Width | b | 287 mm |
| Section Depth | d | 500 mm |
| Flange thickness | tf | 36.6 mm |
| Web thickness | tw | 20.6 mm |
| Radius of Gyration about X-X | rx | 206 mm |
| Radius of Gyrations about Y-Y | ry | 70 mm |
| Moment of Inertia about X-X | Ix | 1274000000 mm4 |
| Moment of Intertia about Y-Y | Iy | 144000000 mm4 |
| Elastic Section Modulus about X-X | Sx | 5080000 mm3 |
| Elastic Section Modulus about Y-Y | Sy | 1006000 mm3 |
| Plastic Section Modulus about X-X | Zx | 5834000 mm3 |
| Plastic Section Modulus about Y-Y | Zy | 1553000 mm3 |
| St. Venant Torsional Constant | J | 10489000 mm4 |
| Warping Torsion Constant | Cw | 7788000000000 mm6 |
| Self Weight of section | Weight | 235 kg/m |
Note: Metric units have been converted from tabulated imperial values and rounded to a reasonable number of significant figures.
A W18X158 steel section is a standard North American steel section in the W - Wide Flange category. The height and width of the section are 19.7 in (500 mm) and 11.3 in (287 mm) respectively. It weighs 158 lb/ft (235 kg/m) and has a cross sectional area of 46.3 in2 (29871 mm2).
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