Round HSS

HSS20.000X0.250 HSS508X6.4

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 = 0.233tdes = 0.233
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
20in
Nominal thicknesstnom
0.25in
Design thicknesstdes
0.233in

Mass and area

Mass per lengthm
52.78lb/ft
Cross-sectional areaA
14.4in²

Strong axis x–x

Moment of inertiaIx
705in⁴
Elastic section modulusSx
70.5in³
Plastic section modulusZx
90.9in³
Radius of gyrationrx
6.99in

Weak axis y–y

Moment of inertiaIy
705in⁴
Elastic section modulusSy
70.5in³
Plastic section modulusZy
90.9in³
Radius of gyrationry
6.99in

Torsion and stability

Torsional constantJ
1,410in⁴
Torsional modulusC
141in³

Slenderness ratios

Wall slendernessD/t
86

Equivalents in other standards