Dimensions and section properties for W30X99
Structural sectional properties for a W30X99 standard steel section
US Customary Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W30X99 |
| Cross Sectional Area | A | 29 in2 |
| Section Width | b | 10.5 in |
| Section Depth | d | 29.7 in |
| Flange thickness | tf | 0.67 in |
| Web thickness | tw | 0.52 in |
| Radius of Gyration about X-X | rx | 11.7 in |
| Radius of Gyrations about Y-Y | ry | 2.1 in |
| Moment of Inertia about X-X | Ix | 3990 in4 |
| Moment of Intertia about Y-Y | Iy | 128 in4 |
| Elastic Section Modulus about X-X | Sx | 269 in3 |
| Elastic Section Modulus about Y-Y | Sy | 24.5 in3 |
| Plastic Section Modulus about X-X | Zx | 312 in3 |
| Plastic Section Modulus about Y-Y | Zy | 38.6 in3 |
| St. Venant Torsional Constant | J | 3.77 in4 |
| Warping Torsion Constant | Cw | 26800 in6 |
| Self Weight of section | Weight | 99 lb/ft |
Metric Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W30X99 |
| Cross Sectional Area | A | 18710 mm2 |
| Section Width | b | 267 mm |
| Section Depth | d | 754 mm |
| Flange thickness | tf | 17 mm |
| Web thickness | tw | 13.2 mm |
| Radius of Gyration about X-X | rx | 297 mm |
| Radius of Gyrations about Y-Y | ry | 53 mm |
| Moment of Inertia about X-X | Ix | 1661000000 mm4 |
| Moment of Intertia about Y-Y | Iy | 53000000 mm4 |
| Elastic Section Modulus about X-X | Sx | 4408000 mm3 |
| Elastic Section Modulus about Y-Y | Sy | 401000 mm3 |
| Plastic Section Modulus about X-X | Zx | 5113000 mm3 |
| Plastic Section Modulus about Y-Y | Zy | 633000 mm3 |
| St. Venant Torsional Constant | J | 1569000 mm4 |
| Warping Torsion Constant | Cw | 7197000000000 mm6 |
| Self Weight of section | Weight | 147 kg/m |
Note: Metric units have been converted from tabulated imperial values and rounded to a reasonable number of significant figures.
A W30X99 steel section is a standard North American steel section in the W - Wide Flange category. The height and width of the section are 29.7 in (754 mm) and 10.5 in (267 mm) respectively. It weighs 99 lb/ft (147 kg/m) and has a cross sectional area of 29 in2 (18710 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