Steel Beam Sizes / AISC / Channels / C3x5
C3x5 Dimensions, Weight and Section Properties
AISC Channels · v16.0
C3x5: 3 in depth, 1.5 in flange width, 5 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
C3x5 dimensions
Not to scale. Dimensions shown for reference.
Section properties
Symbols match the steel section finder. Imperial and metric values are shown side by side.
| Property | Imperial | Metric |
|---|---|---|
| Weight | 5.00 lb/ft | 7.40 kg/m |
| Depth, d | 3.00 in | 76.20 mm |
| Flange width, bf | 1.50 in | 38.10 mm |
| tw | 0.258 in | 6.550 mm |
| tf | 0.273 in | 6.930 mm |
| Area | 1.47 in² | 948.00 mm² |
| Ix | 1.85 in⁴ | 770,000.00 mm⁴ |
| Iy | 0.24 in⁴ | 100,000.00 mm⁴ |
| Sx | 1.23 in³ | 20,200.00 mm³ |
| Sy | 0.23 in³ | 3,740.00 mm³ |
| Zx | 1.52 in³ | 24,900.00 mm³ |
| Zy | 0.46 in³ | 7,600.00 mm³ |
| rx | 1.12 in | 28.40 mm |
| ry | 0.41 in | 10.30 mm |
| J | 0.04 in⁴ | 17,700.00 mm⁴ |
| Cw | 0.38 in⁶ | 102,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus C3x5.
Lighter in C3
C3x4.1
- Weight
- 4.1 lb/ft (-18%)
- Depth
- 3.00 in (0.0%)
- Ix
- 1.7 in⁴ (-11%)
Heavier in C3
C3x6
- Weight
- 6.0 lb/ft (+20%)
- Depth
- 3.00 in (0.0%)
- Ix
- 2.1 in⁴ (+12%)
Another Iₓ option in C3
C3x3.5
- Weight
- 3.5 lb/ft (-30%)
- Depth
- 3.00 in (0.0%)
- Ix
- 1.6 in⁴ (-15%)
Similar weight in C4
C4x5.4
- Weight
- 5.4 lb/ft (+8.0%)
- Depth
- 4.00 in (+33%)
- Ix
- 3.9 in⁴ (+108%)
Source: AISC Shapes Database v16.0 · Methodology