HSS3x.216 – HSS Shapes - Round

HSS3x.216 is a 3 in (76 mm) diameter round hollow section with a 0.216 in (5 mm) nominal wall, weighing 6.43 lb/ft (9.6 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

PropertyValue
Nominal Weight (lb/ft)6.43
Outside Diameter (in)3.0
Nominal Thickness (in)0.216

Full sortable table: Dimensions table for this family

Section Properties

PropertyValue
Ix (in⁴)1.74
Zx (in³)1.58
Sx (in³)1.16
rx (in)0.992
Iy (in⁴)1.74
Zy (in³)1.58
Sy (in³)1.16
ry (in)0.992
J (in⁴)3.48
C (in³)2.32

Full sortable table: Section properties table for this family