Rectangular and square HSS

HSS16X16X5/8 HSS406.4X406.4X15.9

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 = 16d = 16tdes = 0.581tdes = 0.581
Cross-section, to scaledimensions in inches

Dimensions

Depthd
16in
Widthb
16in
Nominal thicknesstnom
0.625in
Design thicknesstdes
0.581in

Mass and area

Mass per lengthm
127.4lb/ft
Cross-sectional areaA
35in²

Strong axis x–x

Moment of inertiaIx
1,370in⁴
Elastic section modulusSx
171in³
Plastic section modulusZx
200in³
Radius of gyrationrx
6.25in

Weak axis y–y

Moment of inertiaIy
1,370in⁴
Elastic section modulusSy
171in³
Plastic section modulusZy
200in³
Radius of gyrationry
6.25in

Torsion and stability

Torsional constantJ
2,170in⁴
Torsional modulusC
276in³

Slenderness ratios

Wall slendernessb/t
24.5
Wall slendernessh/t
24.5

Equivalents in other standards