Round HSS

HSS12.750X0.750 HSS323.9X19.0

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 = 12.8tdes = 0.698tdes = 0.698
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
12.8in
Nominal thicknesstnom
0.75in
Design thicknesstdes
0.698in

Mass and area

Mass per lengthm
96.21lb/ft
Cross-sectional areaA
26.4in²

Strong axis x–x

Moment of inertiaIx
481in⁴
Elastic section modulusSx
75.5in³
Plastic section modulusZx
101in³
Radius of gyrationrx
4.27in

Weak axis y–y

Moment of inertiaIy
481in⁴
Elastic section modulusSy
75.5in³
Plastic section modulusZy
101in³
Radius of gyrationry
4.27in

Torsion and stability

Torsional constantJ
962in⁴
Torsional modulusC
150in³

Slenderness ratios

Wall slendernessD/t
18.3

Equivalents in other standards