HSS6.875x.312 – HSS Shapes - Round
HSS6.875x.312 is a 6.875 in (175 mm) diameter round hollow section with a 0.312 in (8 mm) nominal wall, weighing 21.89 lb/ft (32.6 kg/m).
Round HSS are closed, circular tube sections, sharing the torsional and biaxial strength advantages of rectangular HSS but in a circular profile that's often preferred where appearance matters — exposed columns, canopy supports, and architectural framing — as well as more utilitarian uses like handrail posts and bollards. The circular shape distributes compressive and torsional loads evenly in every direction, making round HSS a strong, materially efficient choice wherever a round column or post is wanted rather than a square or rectangular one.
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Dimensions
| Property | Value |
|---|---|
| Nominal Weight (lb/ft) | 21.89 |
| Outside Diameter (in) | 6.875 |
| Nominal Thickness (in) | 0.312 |
Full sortable table: Dimensions table for this family
Section Properties
| Property | Value |
|---|---|
| Ix (in⁴) | 32.7 |
| Zx (in³) | 12.6 |
| Sx (in³) | 9.51 |
| rx (in) | 2.33 |
| Iy (in⁴) | 32.7 |
| Zy (in³) | 12.6 |
| Sy (in³) | 9.51 |
| ry (in) | 2.33 |
| J (in⁴) | 65.4 |
| C (in³) | 19 |
Full sortable table: Section properties table for this family
