Round HSS

HSS6.875X0.250 HSS174.6X6.4

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 = 6.88tdes = 0.233tdes = 0.233
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
6.88in
Nominal thicknesstnom
0.25in
Design thicknesstdes
0.233in

Mass and area

Mass per lengthm
17.71lb/ft
Cross-sectional areaA
4.86in²

Strong axis x–x

Moment of inertiaIx
26.8in⁴
Elastic section modulusSx
7.81in³
Plastic section modulusZx
10.3in³
Radius of gyrationrx
2.35in

Weak axis y–y

Moment of inertiaIy
26.8in⁴
Elastic section modulusSy
7.81in³
Plastic section modulusZy
10.3in³
Radius of gyrationry
2.35in

Torsion and stability

Torsional constantJ
53.7in⁴
Torsional modulusC
15.6in³

Slenderness ratios

Wall slendernessD/t
29.5

Equivalents in other standards