Rectangular and square HSS

HSS16X4X5/16 HSS406.4X101.6X7.9

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 = 4d = 16tdes = 0.291tdes = 0.291
Cross-section, to scaledimensions in inches

Dimensions

Depthd
16in
Widthb
4in
Nominal thicknesstnom
0.3125in
Design thicknesstdes
0.291in

Mass and area

Mass per lengthm
40.35lb/ft
Cross-sectional areaA
11.1in²

Strong axis x–x

Moment of inertiaIx
308in⁴
Elastic section modulusSx
38.5in³
Plastic section modulusZx
51.1in³
Radius of gyrationrx
5.27in

Weak axis y–y

Moment of inertiaIy
33.2in⁴
Elastic section modulusSy
16.6in³
Plastic section modulusZy
18.5in³
Radius of gyrationry
1.73in

Torsion and stability

Torsional constantJ
103in⁴
Torsional modulusC
33.8in³

Slenderness ratios

Wall slendernessb/t
10.7
Wall slendernessh/t
52

Equivalents in other standards