Rectangular and square HSS

HSS22X20X3/8 HSS558.8X508X9.5

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 = 20d = 22tdes = 0.349tdes = 0.349
Cross-section, to scaledimensions in inches

Dimensions

Depthd
22in
Widthb
20in
Nominal thicknesstnom
0.375in
Design thicknesstdes
0.349in

Mass and area

Mass per lengthm
104lb/ft
Cross-sectional areaA
28.5in²

Strong axis x–x

Moment of inertiaIx
2,160in⁴
Elastic section modulusSx
196in³
Plastic section modulusZx
227in³
Radius of gyrationrx
8.71in

Weak axis y–y

Moment of inertiaIy
1,870in⁴
Elastic section modulusSy
187in³
Plastic section modulusZy
213in³
Radius of gyrationry
8.1in

Torsion and stability

Torsional constantJ
3,090in⁴
Torsional modulusC
297in³

Slenderness ratios

Wall slendernessb/t
54.3
Wall slendernessh/t
60

Equivalents in other standards