Round HSS

HSS7.000X0.188 HSS177.8X4.8

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 = 7tdes = 0.174tdes = 0.174
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
7in
Nominal thicknesstnom
0.188in
Design thicknesstdes
0.174in

Mass and area

Mass per lengthm
13.69lb/ft
Cross-sectional areaA
3.73in²

Strong axis x–x

Moment of inertiaIx
21.7in⁴
Elastic section modulusSx
6.21in³
Plastic section modulusZx
8.11in³
Radius of gyrationrx
2.41in

Weak axis y–y

Moment of inertiaIy
21.7in⁴
Elastic section modulusSy
6.21in³
Plastic section modulusZy
8.11in³
Radius of gyrationry
2.41in

Torsion and stability

Torsional constantJ
43.5in⁴
Torsional modulusC
12.4in³

Slenderness ratios

Wall slendernessD/t
40.2

Equivalents in other standards