Round HSS

HSS12.750X0.188 HSS323.9X4.8

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 = 0.174tdes = 0.174
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
12.8in
Nominal thicknesstnom
0.188in
Design thicknesstdes
0.174in

Mass and area

Mass per lengthm
25.18lb/ft
Cross-sectional areaA
6.89in²

Strong axis x–x

Moment of inertiaIx
136in⁴
Elastic section modulusSx
21.4in³
Plastic section modulusZx
27.6in³
Radius of gyrationrx
4.45in

Weak axis y–y

Moment of inertiaIy
136in⁴
Elastic section modulusSy
21.4in³
Plastic section modulusZy
27.6in³
Radius of gyrationry
4.45in

Torsion and stability

Torsional constantJ
272in⁴
Torsional modulusC
42.7in³

Slenderness ratios

Wall slendernessD/t
73.1

Equivalents in other standards