Dimensions and section properties for W12X30
Structural sectional properties for a W12X30 standard steel section
US Customary Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W12X30 |
| Cross Sectional Area | A | 8.79 in2 |
| Section Width | b | 6.52 in |
| Section Depth | d | 12.3 in |
| Flange thickness | tf | 0.44 in |
| Web thickness | tw | 0.26 in |
| Radius of Gyration about X-X | rx | 5.21 in |
| Radius of Gyrations about Y-Y | ry | 1.52 in |
| Moment of Inertia about X-X | Ix | 238 in4 |
| Moment of Intertia about Y-Y | Iy | 20.3 in4 |
| Elastic Section Modulus about X-X | Sx | 38.6 in3 |
| Elastic Section Modulus about Y-Y | Sy | 6.24 in3 |
| Plastic Section Modulus about X-X | Zx | 43.1 in3 |
| Plastic Section Modulus about Y-Y | Zy | 9.56 in3 |
| St. Venant Torsional Constant | J | 0.457 in4 |
| Warping Torsion Constant | Cw | 720 in6 |
| Self Weight of section | Weight | 30 lb/ft |
Metric Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W12X30 |
| Cross Sectional Area | A | 5671 mm2 |
| Section Width | b | 166 mm |
| Section Depth | d | 312 mm |
| Flange thickness | tf | 11.2 mm |
| Web thickness | tw | 6.6 mm |
| Radius of Gyration about X-X | rx | 132 mm |
| Radius of Gyrations about Y-Y | ry | 39 mm |
| Moment of Inertia about X-X | Ix | 99000000 mm4 |
| Moment of Intertia about Y-Y | Iy | 8000000 mm4 |
| Elastic Section Modulus about X-X | Sx | 633000 mm3 |
| Elastic Section Modulus about Y-Y | Sy | 102000 mm3 |
| Plastic Section Modulus about X-X | Zx | 706000 mm3 |
| Plastic Section Modulus about Y-Y | Zy | 157000 mm3 |
| St. Venant Torsional Constant | J | 190000 mm4 |
| Warping Torsion Constant | Cw | 193000000000 mm6 |
| Self Weight of section | Weight | 45 kg/m |
Note: Metric units have been converted from tabulated imperial values and rounded to a reasonable number of significant figures.
A W12X30 steel section is a standard North American steel section in the W - Wide Flange category. The height and width of the section are 12.3 in (312 mm) and 6.52 in (166 mm) respectively. It weighs 30 lb/ft (45 kg/m) and has a cross sectional area of 8.79 in2 (5671 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