Rectangular and square HSS

HSS8X4X3/8 HSS203.2X101.6X9.5

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 = 4d = 8tdes = 0.349tdes = 0.349
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Widthb
4in
Nominal thicknesstnom
0.375in
Design thicknesstdes
0.349in

Mass and area

Mass per lengthm
27.48lb/ft
Cross-sectional areaA
7.58in²

Strong axis x–x

Moment of inertiaIx
58.7in⁴
Elastic section modulusSx
14.7in³
Plastic section modulusZx
18.8in³
Radius of gyrationrx
2.78in

Weak axis y–y

Moment of inertiaIy
19.6in⁴
Elastic section modulusSy
9.8in³
Plastic section modulusZy
11.5in³
Radius of gyrationry
1.61in

Torsion and stability

Torsional constantJ
49.3in⁴
Torsional modulusC
19.3in³

Slenderness ratios

Wall slendernessb/t
8.46
Wall slendernessh/t
19.9

Equivalents in other standards