Round HSS

HSS20.000X1.000 HSS508X25.4

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 = 0.93tdes = 0.93
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
20in
Nominal thicknesstnom
1in
Design thicknesstdes
0.93in

Mass and area

Mass per lengthm
203.1lb/ft
Cross-sectional areaA
55.7in²

Strong axis x–x

Moment of inertiaIx
2,540in⁴
Elastic section modulusSx
254in³
Plastic section modulusZx
338in³
Radius of gyrationrx
6.75in

Weak axis y–y

Moment of inertiaIy
2,540in⁴
Elastic section modulusSy
254in³
Plastic section modulusZy
338in³
Radius of gyrationry
6.75in

Torsion and stability

Torsional constantJ
5,080in⁴
Torsional modulusC
506in³

Slenderness ratios

Wall slendernessD/t
21.5

Equivalents in other standards