HSS1.9x.188 – HSS Shapes - Round

HSS1.9x.188 is a 1.9 in (48 mm) diameter round hollow section with a 0.188 in (5 mm) nominal wall, weighing 3.44 lb/ft (5.1 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)3.44
Outside Diameter (in)1.9
Nominal Thickness (in)0.188

Full sortable table: Dimensions table for this family

Section Properties

PropertyValue
Ix (in⁴)0.355
Zx (in³)0.52
Sx (in³)0.374
rx (in)0.613
Iy (in⁴)0.355
Zy (in³)0.52
Sy (in³)0.374
ry (in)0.613
J (in⁴)0.71
C (in³)0.747

Full sortable table: Section properties table for this family