W8x40 — Dimensions and Section Properties
Dimensions and key properties
- Weight
- = 40 lb/ft
- A
- = 11.7 in²
- d
- = 8.25 in
- Ix
- = 146 in⁴
- Sx
- = 35.5 in³
- Zx
- = 39.8 in³
- rx
- = 3.53 in
- ry
- = 2.04 in
Section properties
| Property | Value | Unit |
|---|---|---|
| Weight | 40 | lb/ft |
| A | 11.7 | in² |
| d | 8.25 | in |
| bf | 8.07 | in |
| tf | 0.56 | in |
| tw | 0.36 | in |
| Ix | 146 | in⁴ |
| Sx | 35.5 | in³ |
| Zx | 39.8 | in³ |
| rx | 3.53 | in |
| Iy | 49.1 | in⁴ |
| Sy | 12.2 | in³ |
| Zy | 18.5 | in³ |
| ry | 2.04 | in |
Other sizes in the W8 series
Relevant tools
- Steel Shape Properties Table
search and compare W8x40 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