Round HSS

HSS20.000X0.375 HSS508X9.5

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 = 0.349tdes = 0.349
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
20in
Nominal thicknesstnom
0.375in
Design thicknesstdes
0.349in

Mass and area

Mass per lengthm
78.67lb/ft
Cross-sectional areaA
21.5in²

Strong axis x–x

Moment of inertiaIx
1,040in⁴
Elastic section modulusSx
104in³
Plastic section modulusZx
135in³
Radius of gyrationrx
6.95in

Weak axis y–y

Moment of inertiaIy
1,040in⁴
Elastic section modulusSy
104in³
Plastic section modulusZy
135in³
Radius of gyrationry
6.95in

Torsion and stability

Torsional constantJ
2,080in⁴
Torsional modulusC
208in³

Slenderness ratios

Wall slendernessD/t
57.3

Equivalents in other standards