W40x278 — Dimensions and Section Properties
Dimensions and key properties
- Weight
- = 278 lb/ft
- A
- = 82.3 in²
- d
- = 40.2 in
- Ix
- = 20,500 in⁴
- Sx
- = 1,020 in³
- Zx
- = 1,190 in³
- rx
- = 15.8 in
- ry
- = 2.52 in
Section properties
| Property | Value | Unit |
|---|---|---|
| Weight | 278 | lb/ft |
| A | 82.3 | in² |
| d | 40.2 | in |
| bf | 12 | in |
| tf | 1.81 | in |
| tw | 1.03 | in |
| Ix | 20,500 | in⁴ |
| Sx | 1,020 | in³ |
| Zx | 1,190 | in³ |
| rx | 15.8 | in |
| Iy | 521 | in⁴ |
| Sy | 87.1 | in³ |
| Zy | 140 | in³ |
| ry | 2.52 | in |
Other sizes in the W40 series
Relevant tools
- Steel Shape Properties Table
search and compare W40x278 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