Round HSS

HSS20.000X0.750 HSS508X19.0

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 = 0.698tdes = 0.698
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
20in
Nominal thicknesstnom
0.75in
Design thicknesstdes
0.698in

Mass and area

Mass per lengthm
154.3lb/ft
Cross-sectional areaA
42.3in²

Strong axis x–x

Moment of inertiaIx
1,970in⁴
Elastic section modulusSx
197in³
Plastic section modulusZx
260in³
Radius of gyrationrx
6.83in

Weak axis y–y

Moment of inertiaIy
1,970in⁴
Elastic section modulusSy
197in³
Plastic section modulusZy
260in³
Radius of gyrationry
6.83in

Torsion and stability

Torsional constantJ
3,940in⁴
Torsional modulusC
394in³

Slenderness ratios

Wall slendernessD/t
28.7

Equivalents in other standards