Steel Beam Sizes / AISC / ST Tees / ST3x8.6
ST3x8.6 Dimensions, Weight and Section Properties
AISC American standard tees · v16.0
ST3x8.6: 3 in depth, 3.57 in flange width, 8.6 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
ST3x8.6 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 | 8.60 lb/ft | 12.90 kg/m |
| Depth, d | 3.00 in | 76.20 mm |
| Flange width, bf | 3.57 in | 90.70 mm |
| tw | 0.465 in | 11.800 mm |
| tf | 0.359 in | 9.120 mm |
| Area | 2.53 in² | 1,630.00 mm² |
| Ix | 2.12 in⁴ | 882,000.00 mm⁴ |
| Iy | 1.14 in⁴ | 475,000.00 mm⁴ |
| Sx | 1.02 in³ | 16,700.00 mm³ |
| Sy | 0.64 in³ | 10,500.00 mm³ |
| Zx | 1.85 in³ | 30,300.00 mm³ |
| Zy | 1.17 in³ | 19,200.00 mm³ |
| rx | 0.92 in | 23.20 mm |
| ry | 0.67 in | 17.10 mm |
| J | 0.18 in⁴ | 75,300.00 mm⁴ |
| Cw | 0.08 in⁶ | 20,700,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus ST3x8.6.
Source: AISC Shapes Database v16.0 · Methodology