Round HSS

HSS12.750X0.625 HSS323.9X15.9

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 = 12.8tdes = 0.581tdes = 0.581
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
12.8in
Nominal thicknesstnom
0.625in
Design thicknesstdes
0.581in

Mass and area

Mass per lengthm
81.01lb/ft
Cross-sectional areaA
22.2in²

Strong axis x–x

Moment of inertiaIx
412in⁴
Elastic section modulusSx
64.7in³
Plastic section modulusZx
86.1in³
Radius of gyrationrx
4.31in

Weak axis y–y

Moment of inertiaIy
412in⁴
Elastic section modulusSy
64.7in³
Plastic section modulusZy
86.1in³
Radius of gyrationry
4.31in

Torsion and stability

Torsional constantJ
824in⁴
Torsional modulusC
129in³

Slenderness ratios

Wall slendernessD/t
21.9

Equivalents in other standards