W21x73 — Dimensions and Section Properties
Dimensions and key properties
- Weight
- = 73 lb/ft
- A
- = 21.5 in²
- d
- = 21.2 in
- Ix
- = 1,600 in⁴
- Sx
- = 151 in³
- Zx
- = 172 in³
- rx
- = 8.64 in
- ry
- = 1.81 in
Section properties
| Property | Value | Unit |
|---|---|---|
| Weight | 73 | lb/ft |
| A | 21.5 | in² |
| d | 21.2 | in |
| bf | 8.3 | in |
| tf | 0.74 | in |
| tw | 0.455 | in |
| Ix | 1,600 | in⁴ |
| Sx | 151 | in³ |
| Zx | 172 | in³ |
| rx | 8.64 | in |
| Iy | 70.6 | in⁴ |
| Sy | 17 | in³ |
| Zy | 26.6 | in³ |
| ry | 1.81 | in |
Other sizes in the W21 series
Relevant tools
- Steel Shape Properties Table
search and compare W21x73 against other sections
- Beam Shear, Moment and Deflection Diagram Calculator
find the moment this section has to carry, and how far it deflects under load
- ASTM A992
the grade most W-shapes are supplied in