HSS10x.312 – HSS Shapes - Round

HSS10x.312 is a 10 in (254 mm) diameter round hollow section with a 0.312 in (8 mm) nominal wall, weighing 32.31 lb/ft (48.1 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)32.31
Outside Diameter (in)10.0
Nominal Thickness (in)0.312

Full sortable table: Dimensions table for this family

Section Properties

PropertyValue
Ix (in⁴)105
Zx (in³)27.4
Sx (in³)20.9
rx (in)3.43
Iy (in⁴)105
Zy (in³)27.4
Sy (in³)20.9
ry (in)3.43
J (in⁴)209
C (in³)41.9

Full sortable table: Section properties table for this family