HSS2-7/8x1/4 (HSS2.875x.250) – HSS Shapes - Round

HSS2-7/8x1/4 is a 2.875 in (73 mm) diameter round hollow section with a 1/4 in (6 mm) nominal wall, weighing 7.02 lb/ft (10.4 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)7.02
Outside Diameter (in)2.875
Nominal Thickness (in)0.25

Full sortable table: Dimensions table for this family

Section Properties

PropertyValue
Ix (in⁴)1.7
Zx (in³)1.63
Sx (in³)1.18
rx (in)0.938
Iy (in⁴)1.7
Zy (in³)1.63
Sy (in³)1.18
ry (in)0.938
J (in⁴)3.4
C (in³)2.37

Full sortable table: Section properties table for this family