Round HSS

HSS8.625X0.188 HSS219.1X4.8

Standard: AISC Shapes Database v16.0Source: AISC (aisc.org) — Shapes Database v16.0 (Excel file)
Values published by AISC, in US customary (original) and SI units.
xyD = 8.63tdes = 0.174tdes = 0.174
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
8.63in
Nominal thicknesstnom
0.188in
Design thicknesstdes
0.174in

Mass and area

Mass per lengthm
16.96lb/ft
Cross-sectional areaA
4.62in²

Strong axis x–x

Moment of inertiaIx
41.3in⁴
Elastic section modulusSx
9.57in³
Plastic section modulusZx
12.4in³
Radius of gyrationrx
2.99in

Weak axis y–y

Moment of inertiaIy
41.3in⁴
Elastic section modulusSy
9.57in³
Plastic section modulusZy
12.4in³
Radius of gyrationry
2.99in

Torsion and stability

Torsional constantJ
82.5in⁴
Torsional modulusC
19.1in³

Slenderness ratios

Wall slendernessD/t
49.6

Equivalents in other standards