Rectangular and square HSS

HSS16X8X1/4 HSS406.4X203.2X6.4

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 = 0.233tdes = 0.233
Cross-section, to scaledimensions in inches

Dimensions

Depthd
16in
Widthb
8in
Nominal thicknesstnom
0.25in
Design thicknesstdes
0.233in

Mass and area

Mass per lengthm
39.43lb/ft
Cross-sectional areaA
10.8in²

Strong axis x–x

Moment of inertiaIx
368in⁴
Elastic section modulusSx
46.1in³
Plastic section modulusZx
56.4in³
Radius of gyrationrx
5.83in

Weak axis y–y

Moment of inertiaIy
127in⁴
Elastic section modulusSy
31.7in³
Plastic section modulusZy
35in³
Radius of gyrationry
3.42in

Torsion and stability

Torsional constantJ
300in⁴
Torsional modulusC
57in³

Slenderness ratios

Wall slendernessb/t
31.3
Wall slendernessh/t
65.7

Equivalents in other standards