Round HSS

HSS6.625X0.500 HSS168.3X12.7

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 = 0.465tdes = 0.465
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
6.63in
Nominal thicknesstnom
0.5in
Design thicknesstdes
0.465in

Mass and area

Mass per lengthm
32.74lb/ft
Cross-sectional areaA
9in²

Strong axis x–x

Moment of inertiaIx
42.9in⁴
Elastic section modulusSx
13in³
Plastic section modulusZx
17.7in³
Radius of gyrationrx
2.18in

Weak axis y–y

Moment of inertiaIy
42.9in⁴
Elastic section modulusSy
13in³
Plastic section modulusZy
17.7in³
Radius of gyrationry
2.18in

Torsion and stability

Torsional constantJ
85.9in⁴
Torsional modulusC
25.9in³

Slenderness ratios

Wall slendernessD/t
14.2

Equivalents in other standards