Round HSS

HSS6.625X0.432 HSS168.3X11

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 = 6.63tdes = 0.402tdes = 0.402
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
6.63in
Nominal thicknesstnom
0.432in
Design thicknesstdes
0.402in

Mass and area

Mass per lengthm
28.6lb/ft
Cross-sectional areaA
7.86in²

Strong axis x–x

Moment of inertiaIx
38.2in⁴
Elastic section modulusSx
11.5in³
Plastic section modulusZx
15.6in³
Radius of gyrationrx
2.2in

Weak axis y–y

Moment of inertiaIy
38.2in⁴
Elastic section modulusSy
11.5in³
Plastic section modulusZy
15.6in³
Radius of gyrationry
2.2in

Torsion and stability

Torsional constantJ
76.4in⁴
Torsional modulusC
23.1in³

Slenderness ratios

Wall slendernessD/t
16.5

Equivalents in other standards