Round HSS

HSS20.000X0.625 HSS508X15.9

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 = 20tdes = 0.581tdes = 0.581
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
20in
Nominal thicknesstnom
0.625in
Design thicknesstdes
0.581in

Mass and area

Mass per lengthm
129.5lb/ft
Cross-sectional areaA
35.5in²

Strong axis x–x

Moment of inertiaIx
1,670in⁴
Elastic section modulusSx
167in³
Plastic section modulusZx
219in³
Radius of gyrationrx
6.87in

Weak axis y–y

Moment of inertiaIy
1,670in⁴
Elastic section modulusSy
167in³
Plastic section modulusZy
219in³
Radius of gyrationry
6.87in

Torsion and stability

Torsional constantJ
3,350in⁴
Torsional modulusC
334in³

Slenderness ratios

Wall slendernessD/t
34.4

Equivalents in other standards