HSS7-1/2x1/4 (HSS7.5x.250) – HSS Shapes - Round

HSS7-1/2x1/4 is a 7.5 in (191 mm) diameter round hollow section with a 1/4 in (6 mm) nominal wall, weighing 19.38 lb/ft (28.8 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)19.38
Outside Diameter (in)7.5
Nominal Thickness (in)0.25

Full sortable table: Dimensions table for this family

Section Properties

PropertyValue
Ix (in⁴)35.2
Zx (in³)12.3
Sx (in³)9.37
rx (in)2.57
Iy (in⁴)35.2
Zy (in³)12.3
Sy (in³)9.37
ry (in)2.57
J (in⁴)70.3
C (in³)18.7

Full sortable table: Section properties table for this family