HSS7.5x.312 – HSS Shapes - Round

HSS7.5x.312 is a 7.5 in (191 mm) diameter round hollow section with a 0.312 in (8 mm) nominal wall, weighing 23.97 lb/ft (35.7 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)23.97
Outside Diameter (in)7.5
Nominal Thickness (in)0.312

Full sortable table: Dimensions table for this family

Section Properties

PropertyValue
Ix (in⁴)42.9
Zx (in³)15.1
Sx (in³)11.4
rx (in)2.55
Iy (in⁴)42.9
Zy (in³)15.1
Sy (in³)11.4
ry (in)2.55
J (in⁴)85.8
C (in³)22.9

Full sortable table: Section properties table for this family