HSS1.9x.145 – HSS Shapes - Round

HSS1.9x.145 is a 1.9 in (48 mm) diameter round hollow section with a 0.145 in (4 mm) nominal wall, weighing 2.72 lb/ft (4.0 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)2.72
Outside Diameter (in)1.9
Nominal Thickness (in)0.145

Full sortable table: Dimensions table for this family

Section Properties

PropertyValue
Ix (in⁴)0.293
Zx (in³)0.421
Sx (in³)0.309
rx (in)0.626
Iy (in⁴)0.293
Zy (in³)0.421
Sy (in³)0.309
ry (in)0.626
J (in⁴)0.586
C (in³)0.617

Full sortable table: Section properties table for this family