W40×593 vs W40×655
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W40×655 is the heavier section at 655 lb per foot, versus 593 for W40×593 (62 lb/ft more).
Both are nominally 40 in. deep.
W40×655 has the greater bending strength: section modulus Sx of 2590 in³ versus 2340, about 11% more.
| Property | W40×593 | W40×655 |
|---|---|---|
| Weight | 593 lb/ft | 655 lb/ft |
| Depth (d) | 43" | 43 5/8" |
| Flange width (bf) | 16 3/4" | 16 7/8" |
| Web thickness (tw) | 1 13/16" | 2" |
| Flange thickness (tf) | 3 1/4" | 3 9/16" |
| Area (A) | 174 in² | 193 in² |
| Moment of inertia (Ix) | 50400 in⁴ | 56500 in⁴ |
| Section modulus (Sx) | 2340 in³ | 2590 in³ |
| Plastic modulus (Zx) | 2760 in³ | 3080 in³ |
Open W40×593 in the interactive size chart →
Full detail: W40×593 · W40×655. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
Browse more: size comparisons · Steel Beam Size Chart