Rectangular and square HSS

HSS16X16X5/16 HSS406.4X406.4X7.9

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

Dimensions

Depthd
16in
Widthb
16in
Nominal thicknesstnom
0.3125in
Design thicknesstdes
0.291in

Mass and area

Mass per lengthm
65.87lb/ft
Cross-sectional areaA
18.1in²

Strong axis x–x

Moment of inertiaIx
739in⁴
Elastic section modulusSx
92.3in³
Plastic section modulusZx
106in³
Radius of gyrationrx
6.39in

Weak axis y–y

Moment of inertiaIy
739in⁴
Elastic section modulusSy
92.3in³
Plastic section modulusZy
106in³
Radius of gyrationry
6.39in

Torsion and stability

Torsional constantJ
1,140in⁴
Torsional modulusC
144in³

Slenderness ratios

Wall slendernessb/t
52
Wall slendernessh/t
52

Equivalents in other standards