Structural sectional properties for a W40X397 standard steel section

| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W40X397 |
| Cross Sectional Area | A | 117 in2 |
| Section Width | b | 16.1 in |
| Section Depth | d | 41 in |
| Flange thickness | tf | 2.2 in |
| Web thickness | tw | 1.22 in |
| Radius of Gyration about X-X | rx | 16.6 in |
| Radius of Gyrations about Y-Y | ry | 3.64 in |
| Moment of Inertia about X-X | Ix | 32000 in4 |
| Moment of Intertia about Y-Y | Iy | 1540 in4 |
| Elastic Section Modulus about X-X | Sx | 1560 in3 |
| Elastic Section Modulus about Y-Y | Sy | 191 in3 |
| Plastic Section Modulus about X-X | Zx | 1800 in3 |
| Plastic Section Modulus about Y-Y | Zy | 300 in3 |
| St. Venant Torsional Constant | J | 142 in4 |
| Warping Torsion Constant | Cw | 579000 in6 |
| Self Weight of section | Weight | 397 lb/ft |
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W40X397 |
| Cross Sectional Area | A | 75484 mm2 |
| Section Width | b | 409 mm |
| Section Depth | d | 1041 mm |
| Flange thickness | tf | 55.9 mm |
| Web thickness | tw | 31 mm |
| Radius of Gyration about X-X | rx | 422 mm |
| Radius of Gyrations about Y-Y | ry | 92 mm |
| Moment of Inertia about X-X | Ix | 13319000000 mm4 |
| Moment of Intertia about Y-Y | Iy | 641000000 mm4 |
| Elastic Section Modulus about X-X | Sx | 25564000 mm3 |
| Elastic Section Modulus about Y-Y | Sy | 3130000 mm3 |
| Plastic Section Modulus about X-X | Zx | 29497000 mm3 |
| Plastic Section Modulus about Y-Y | Zy | 4916000 mm3 |
| St. Venant Torsional Constant | J | 59105000 mm4 |
| Warping Torsion Constant | Cw | 155482000000000 mm6 |
| Self Weight of section | Weight | 591 kg/m |
Note: Metric units have been converted from tabulated imperial values and rounded to a reasonable number of significant figures.
A W40X397 steel section is a standard North American steel section in the W - Wide Flange category. The height and width of the section are 41 in (1041 mm) and 16.1 in (409 mm) respectively. It weighs 397 lb/ft (591 kg/m) and has a cross sectional area of 117 in2 (75484 mm2).
The section has a tensile yield capacity of:
The section has a flexural plastic moment capacity of:
The section has a flexural elastic moment capacity of: