Dimensions and section properties for W12X72
Structural sectional properties for a W12X72 standard steel section
US Customary Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W12X72 |
| Cross Sectional Area | A | 21.1 in2 |
| Section Width | b | 12 in |
| Section Depth | d | 12.3 in |
| Flange thickness | tf | 0.67 in |
| Web thickness | tw | 0.43 in |
| Radius of Gyration about X-X | rx | 5.31 in |
| Radius of Gyrations about Y-Y | ry | 3.04 in |
| Moment of Inertia about X-X | Ix | 597 in4 |
| Moment of Intertia about Y-Y | Iy | 195 in4 |
| Elastic Section Modulus about X-X | Sx | 97.4 in3 |
| Elastic Section Modulus about Y-Y | Sy | 32.4 in3 |
| Plastic Section Modulus about X-X | Zx | 108 in3 |
| Plastic Section Modulus about Y-Y | Zy | 49.2 in3 |
| St. Venant Torsional Constant | J | 2.93 in4 |
| Warping Torsion Constant | Cw | 6540 in6 |
| Self Weight of section | Weight | 72 lb/ft |
Metric Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W12X72 |
| Cross Sectional Area | A | 13613 mm2 |
| Section Width | b | 305 mm |
| Section Depth | d | 312 mm |
| Flange thickness | tf | 17 mm |
| Web thickness | tw | 10.9 mm |
| Radius of Gyration about X-X | rx | 135 mm |
| Radius of Gyrations about Y-Y | ry | 77 mm |
| Moment of Inertia about X-X | Ix | 248000000 mm4 |
| Moment of Intertia about Y-Y | Iy | 81000000 mm4 |
| Elastic Section Modulus about X-X | Sx | 1596000 mm3 |
| Elastic Section Modulus about Y-Y | Sy | 531000 mm3 |
| Plastic Section Modulus about X-X | Zx | 1770000 mm3 |
| Plastic Section Modulus about Y-Y | Zy | 806000 mm3 |
| St. Venant Torsional Constant | J | 1220000 mm4 |
| Warping Torsion Constant | Cw | 1756000000000 mm6 |
| Self Weight of section | Weight | 107 kg/m |
Note: Metric units have been converted from tabulated imperial values and rounded to a reasonable number of significant figures.
A W12X72 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 12 in (305 mm) respectively. It weighs 72 lb/ft (107 kg/m) and has a cross sectional area of 21.1 in2 (13613 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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