Dimensions and section properties for W21X44
Structural sectional properties for a W21X44 standard steel section
US Customary Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W21X44 |
| Cross Sectional Area | A | 13 in2 |
| Section Width | b | 6.5 in |
| Section Depth | d | 20.7 in |
| Flange thickness | tf | 0.45 in |
| Web thickness | tw | 0.35 in |
| Radius of Gyration about X-X | rx | 8.06 in |
| Radius of Gyrations about Y-Y | ry | 1.26 in |
| Moment of Inertia about X-X | Ix | 843 in4 |
| Moment of Intertia about Y-Y | Iy | 20.7 in4 |
| Elastic Section Modulus about X-X | Sx | 81.6 in3 |
| Elastic Section Modulus about Y-Y | Sy | 6.37 in3 |
| Plastic Section Modulus about X-X | Zx | 95.4 in3 |
| Plastic Section Modulus about Y-Y | Zy | 10.2 in3 |
| St. Venant Torsional Constant | J | 0.77 in4 |
| Warping Torsion Constant | Cw | 2110 in6 |
| Self Weight of section | Weight | 44 lb/ft |
Metric Units
| Description | Symbol | Value |
|---|---|---|
| Shape Category / Designation | Type | W |
| Section Name | Name | W21X44 |
| Cross Sectional Area | A | 8387 mm2 |
| Section Width | b | 165 mm |
| Section Depth | d | 526 mm |
| Flange thickness | tf | 11.4 mm |
| Web thickness | tw | 8.9 mm |
| Radius of Gyration about X-X | rx | 205 mm |
| Radius of Gyrations about Y-Y | ry | 32 mm |
| Moment of Inertia about X-X | Ix | 351000000 mm4 |
| Moment of Intertia about Y-Y | Iy | 9000000 mm4 |
| Elastic Section Modulus about X-X | Sx | 1337000 mm3 |
| Elastic Section Modulus about Y-Y | Sy | 104000 mm3 |
| Plastic Section Modulus about X-X | Zx | 1563000 mm3 |
| Plastic Section Modulus about Y-Y | Zy | 167000 mm3 |
| St. Venant Torsional Constant | J | 320000 mm4 |
| Warping Torsion Constant | Cw | 567000000000 mm6 |
| Self Weight of section | Weight | 65 kg/m |
Note: Metric units have been converted from tabulated imperial values and rounded to a reasonable number of significant figures.
A W21X44 steel section is a standard North American steel section in the W - Wide Flange category. The height and width of the section are 20.7 in (526 mm) and 6.5 in (165 mm) respectively. It weighs 44 lb/ft (65 kg/m) and has a cross sectional area of 13 in2 (8387 mm2).
The section has a tensile yield capacity of:
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The section has a flexural plastic moment capacity of:
kip-ft
The section has a flexural elastic moment capacity of:
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