Round HSS

HSS20.000X0.875 HSS508X22.2

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 = 0.814tdes = 0.814
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
20in
Nominal thicknesstnom
0.875in
Design thicknesstdes
0.814in

Mass and area

Mass per lengthm
178.9lb/ft
Cross-sectional areaA
49in²

Strong axis x–x

Moment of inertiaIx
2,260in⁴
Elastic section modulusSx
226in³
Plastic section modulusZx
300in³
Radius of gyrationrx
6.79in

Weak axis y–y

Moment of inertiaIy
2,260in⁴
Elastic section modulusSy
226in³
Plastic section modulusZy
300in³
Radius of gyrationry
6.79in

Torsion and stability

Torsional constantJ
4,520in⁴
Torsional modulusC
451in³

Slenderness ratios

Wall slendernessD/t
24.6

Equivalents in other standards