Rectangular and square HSS

HSS22X20X3/4 HSS558.8X508X19.0

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 = 0.698tdes = 0.698
Cross-section, to scaledimensions in inches

Dimensions

Depthd
22in
Widthb
20in
Nominal thicknesstnom
0.75in
Design thicknesstdes
0.698in

Mass and area

Mass per lengthm
201.8lb/ft
Cross-sectional areaA
55.4in²

Strong axis x–x

Moment of inertiaIx
4,040in⁴
Elastic section modulusSx
367in³
Plastic section modulusZx
432in³
Radius of gyrationrx
8.54in

Weak axis y–y

Moment of inertiaIy
3,490in⁴
Elastic section modulusSy
349in³
Plastic section modulusZy
405in³
Radius of gyrationry
7.93in

Torsion and stability

Torsional constantJ
5,920in⁴
Torsional modulusC
573in³

Slenderness ratios

Wall slendernessb/t
25.7
Wall slendernessh/t
28.5

Equivalents in other standards