Rectangular and square HSS

HSS8X8X5/8 HSS203.2X203.2X15.9

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.
xyb = 8d = 8tdes = 0.581tdes = 0.581
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Widthb
8in
Nominal thicknesstnom
0.625in
Design thicknesstdes
0.581in

Mass and area

Mass per lengthm
59.32lb/ft
Cross-sectional areaA
16.4in²

Strong axis x–x

Moment of inertiaIx
146in⁴
Elastic section modulusSx
36.5in³
Plastic section modulusZx
44.7in³
Radius of gyrationrx
2.99in

Weak axis y–y

Moment of inertiaIy
146in⁴
Elastic section modulusSy
36.5in³
Plastic section modulusZy
44.7in³
Radius of gyrationry
2.99in

Torsion and stability

Torsional constantJ
244in⁴
Torsional modulusC
63.2in³

Slenderness ratios

Wall slendernessb/t
10.8
Wall slendernessh/t
10.8

Equivalents in other standards