Dimensions and section properties for W12X45
Structural sectional properties for a W12X45 standard steel section
US Customary Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W12X45 |
| Cross Sectional Area | A | 13.1 in2 |
| Section Width | b | 8.05 in |
| Section Depth | d | 12.1 in |
| Flange thickness | tf | 0.575 in |
| Web thickness | tw | 0.335 in |
| Radius of Gyration about X-X | rx | 5.15 in |
| Radius of Gyrations about Y-Y | ry | 1.95 in |
| Moment of Inertia about X-X | Ix | 348 in4 |
| Moment of Intertia about Y-Y | Iy | 50 in4 |
| Elastic Section Modulus about X-X | Sx | 57.7 in3 |
| Elastic Section Modulus about Y-Y | Sy | 12.4 in3 |
| Plastic Section Modulus about X-X | Zx | 64.2 in3 |
| Plastic Section Modulus about Y-Y | Zy | 19 in3 |
| St. Venant Torsional Constant | J | 1.26 in4 |
| Warping Torsion Constant | Cw | 1650 in6 |
| Self Weight of section | Weight | 45 lb/ft |
Metric Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W12X45 |
| Cross Sectional Area | A | 8452 mm2 |
| Section Width | b | 204 mm |
| Section Depth | d | 307 mm |
| Flange thickness | tf | 14.6 mm |
| Web thickness | tw | 8.5 mm |
| Radius of Gyration about X-X | rx | 131 mm |
| Radius of Gyrations about Y-Y | ry | 50 mm |
| Moment of Inertia about X-X | Ix | 145000000 mm4 |
| Moment of Intertia about Y-Y | Iy | 21000000 mm4 |
| Elastic Section Modulus about X-X | Sx | 946000 mm3 |
| Elastic Section Modulus about Y-Y | Sy | 203000 mm3 |
| Plastic Section Modulus about X-X | Zx | 1052000 mm3 |
| Plastic Section Modulus about Y-Y | Zy | 311000 mm3 |
| St. Venant Torsional Constant | J | 524000 mm4 |
| Warping Torsion Constant | Cw | 443000000000 mm6 |
| Self Weight of section | Weight | 67 kg/m |
Note: Metric units have been converted from tabulated imperial values and rounded to a reasonable number of significant figures.
A W12X45 steel section is a standard North American steel section in the W - Wide Flange category. The height and width of the section are 12.1 in (307 mm) and 8.05 in (204 mm) respectively. It weighs 45 lb/ft (67 kg/m) and has a cross sectional area of 13.1 in2 (8452 mm2).
The section has a tensile yield capacity of:
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The section has a flexural plastic moment capacity of:
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The section has a flexural elastic moment capacity of:
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