Rectangular and square HSS

HSS16X8X1/2 HSS406.4X203.2X12.7

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 = 0.465tdes = 0.465
Cross-section, to scaledimensions in inches

Dimensions

Depthd
16in
Widthb
8in
Nominal thicknesstnom
0.5in
Design thicknesstdes
0.465in

Mass and area

Mass per lengthm
76.07lb/ft
Cross-sectional areaA
20.9in²

Strong axis x–x

Moment of inertiaIx
679in⁴
Elastic section modulusSx
84.9in³
Plastic section modulusZx
106in³
Radius of gyrationrx
5.7in

Weak axis y–y

Moment of inertiaIy
230in⁴
Elastic section modulusSy
57.6in³
Plastic section modulusZy
65.5in³
Radius of gyrationry
3.32in

Torsion and stability

Torsional constantJ
563in⁴
Torsional modulusC
108in³

Slenderness ratios

Wall slendernessb/t
14.2
Wall slendernessh/t
31.4

Equivalents in other standards