Rectangular and square HSS

HSS16X16X3/8 HSS406.4X406.4X9.5

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 = 0.349tdes = 0.349
Cross-section, to scaledimensions in inches

Dimensions

Depthd
16in
Widthb
16in
Nominal thicknesstnom
0.375in
Design thicknesstdes
0.349in

Mass and area

Mass per lengthm
78.52lb/ft
Cross-sectional areaA
21.5in²

Strong axis x–x

Moment of inertiaIx
873in⁴
Elastic section modulusSx
109in³
Plastic section modulusZx
126in³
Radius of gyrationrx
6.37in

Weak axis y–y

Moment of inertiaIy
873in⁴
Elastic section modulusSy
109in³
Plastic section modulusZy
126in³
Radius of gyrationry
6.37in

Torsion and stability

Torsional constantJ
1,350in⁴
Torsional modulusC
171in³

Slenderness ratios

Wall slendernessb/t
42.8
Wall slendernessh/t
42.8

Equivalents in other standards