Rectangular and square HSS

HSS16X4X5/8 HSS406.4X101.6X15.9

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

Dimensions

Depthd
16in
Widthb
4in
Nominal thicknesstnom
0.625in
Design thicknesstdes
0.581in

Mass and area

Mass per lengthm
76.33lb/ft
Cross-sectional areaA
21in²

Strong axis x–x

Moment of inertiaIx
539in⁴
Elastic section modulusSx
67.3in³
Plastic section modulusZx
92.9in³
Radius of gyrationrx
5.06in

Weak axis y–y

Moment of inertiaIy
54.1in⁴
Elastic section modulusSy
27in³
Plastic section modulusZy
32.5in³
Radius of gyrationry
1.6in

Torsion and stability

Torsional constantJ
174in⁴
Torsional modulusC
60.5in³

Slenderness ratios

Wall slendernessb/t
3.88
Wall slendernessh/t
24.5

Equivalents in other standards