Round HSS

HSS12.750X0.500 HSS323.9X12.7

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 = 0.465tdes = 0.465
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
12.8in
Nominal thicknesstnom
0.5in
Design thicknesstdes
0.465in

Mass and area

Mass per lengthm
65.48lb/ft
Cross-sectional areaA
17.9in²

Strong axis x–x

Moment of inertiaIx
339in⁴
Elastic section modulusSx
53.2in³
Plastic section modulusZx
70.2in³
Radius of gyrationrx
4.35in

Weak axis y–y

Moment of inertiaIy
339in⁴
Elastic section modulusSy
53.2in³
Plastic section modulusZy
70.2in³
Radius of gyrationry
4.35in

Torsion and stability

Torsional constantJ
678in⁴
Torsional modulusC
106in³

Slenderness ratios

Wall slendernessD/t
27.4

Equivalents in other standards