Round HSS

HSS7.000X0.312 HSS177.8X7.9

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 = 0.291tdes = 0.291
Cross-section, to scaledimensions in inches

Dimensions

Outside diameterD
7in
Nominal thicknesstnom
0.312in
Design thicknesstdes
0.291in

Mass and area

Mass per lengthm
22.31lb/ft
Cross-sectional areaA
6.13in²

Strong axis x–x

Moment of inertiaIx
34.6in⁴
Elastic section modulusSx
9.88in³
Plastic section modulusZx
13.1in³
Radius of gyrationrx
2.37in

Weak axis y–y

Moment of inertiaIy
34.6in⁴
Elastic section modulusSy
9.88in³
Plastic section modulusZy
13.1in³
Radius of gyrationry
2.37in

Torsion and stability

Torsional constantJ
69.1in⁴
Torsional modulusC
19.8in³

Slenderness ratios

Wall slendernessD/t
24.1

Equivalents in other standards