Rectangular and square HSS

HSS16X8X3/8 HSS406.4X203.2X9.5

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 = 8d = 16tdes = 0.349tdes = 0.349
Cross-section, to scaledimensions in inches

Dimensions

Depthd
16in
Widthb
8in
Nominal thicknesstnom
0.375in
Design thicknesstdes
0.349in

Mass and area

Mass per lengthm
58.1lb/ft
Cross-sectional areaA
16in²

Strong axis x–x

Moment of inertiaIx
531in⁴
Elastic section modulusSx
66.3in³
Plastic section modulusZx
82.1in³
Radius of gyrationrx
5.77in

Weak axis y–y

Moment of inertiaIy
181in⁴
Elastic section modulusSy
45.3in³
Plastic section modulusZy
50.8in³
Radius of gyrationry
3.37in

Torsion and stability

Torsional constantJ
436in⁴
Torsional modulusC
83.4in³

Slenderness ratios

Wall slendernessb/t
19.9
Wall slendernessh/t
42.8

Equivalents in other standards