Dimensions and section properties for WT8X18
Structural sectional properties for a WT8X18 standard steel section
US Customary Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | WT |
| Section Name | Name | WT8X18 |
| Cross Sectional Area | A | 5.29 in2 |
| Section Width | b | 6.99 in |
| Section Depth | d | 7.93 in |
| Flange thickness | tf | 0.43 in |
| Web thickness | tw | 0.295 in |
| Radius of Gyration about X-X | rx | 2.41 in |
| Radius of Gyrations about Y-Y | ry | 1.52 in |
| Moment of Inertia about X-X | Ix | 30.6 in4 |
| Moment of Intertia about Y-Y | Iy | 12.2 in4 |
| Elastic Section Modulus about X-X | Sx | 5.05 in3 |
| Elastic Section Modulus about Y-Y | Sy | 3.5 in3 |
| Plastic Section Modulus about X-X | Zx | 8.93 in3 |
| Plastic Section Modulus about Y-Y | Zy | 5.42 in3 |
| St. Venant Torsional Constant | J | 0.272 in4 |
| Warping Torsion Constant | Cw | 0.516 in6 |
| Self Weight of section | Weight | 18 lb/ft |
Metric Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | WT |
| Section Name | Name | WT8X18 |
| Cross Sectional Area | A | 3413 mm2 |
| Section Width | b | 178 mm |
| Section Depth | d | 201 mm |
| Flange thickness | tf | 10.9 mm |
| Web thickness | tw | 7.5 mm |
| Radius of Gyration about X-X | rx | 61 mm |
| Radius of Gyrations about Y-Y | ry | 39 mm |
| Moment of Inertia about X-X | Ix | 13000000 mm4 |
| Moment of Intertia about Y-Y | Iy | 5000000 mm4 |
| Elastic Section Modulus about X-X | Sx | 83000 mm3 |
| Elastic Section Modulus about Y-Y | Sy | 57000 mm3 |
| Plastic Section Modulus about X-X | Zx | 146000 mm3 |
| Plastic Section Modulus about Y-Y | Zy | 89000 mm3 |
| St. Venant Torsional Constant | J | 113000 mm4 |
| Warping Torsion Constant | Cw | 0 mm6 |
| Self Weight of section | Weight | 27 kg/m |
Note: Metric units have been converted from tabulated imperial values and rounded to a reasonable number of significant figures.
A WT8X18 steel section is a standard North American steel section in the WT - Tee Sections category. The height and width of the section are 7.93 in (201 mm) and 6.99 in (178 mm) respectively. It weighs 18 lb/ft (27 kg/m) and has a cross sectional area of 5.29 in2 (3413 mm2).
The section has a tensile yield capacity of:
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The section has a flexural plastic moment capacity of:
kip-ft
The section has a flexural elastic moment capacity of:
kip-ft