Rectangular and square HSS

HSS8X4X1/8 HSS203.2X101.6X3.2

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 = 0.116tdes = 0.116
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Widthb
4in
Nominal thicknesstnom
0.125in
Design thicknesstdes
0.116in

Mass and area

Mass per lengthm
9.86lb/ft
Cross-sectional areaA
2.7in²

Strong axis x–x

Moment of inertiaIx
22.9in⁴
Elastic section modulusSx
5.73in³
Plastic section modulusZx
7.02in³
Radius of gyrationrx
2.92in

Weak axis y–y

Moment of inertiaIy
7.9in⁴
Elastic section modulusSy
3.95in³
Plastic section modulusZy
4.36in³
Radius of gyrationry
1.71in

Torsion and stability

Torsional constantJ
18.7in⁴
Torsional modulusC
7.1in³

Slenderness ratios

Wall slendernessb/t
31.5
Wall slendernessh/t
66

Equivalents in other standards