Rectangular and square HSS

HSS22X20X5/8 HSS558.8X508X15.9

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 = 0.581tdes = 0.581
Cross-section, to scaledimensions in inches

Dimensions

Depthd
22in
Widthb
20in
Nominal thicknesstnom
0.625in
Design thicknesstdes
0.581in

Mass and area

Mass per lengthm
169.9lb/ft
Cross-sectional areaA
46.6in²

Strong axis x–x

Moment of inertiaIx
3,440in⁴
Elastic section modulusSx
313in³
Plastic section modulusZx
366in³
Radius of gyrationrx
8.59in

Weak axis y–y

Moment of inertiaIy
2,970in⁴
Elastic section modulusSy
297in³
Plastic section modulusZy
343in³
Radius of gyrationry
7.99in

Torsion and stability

Torsional constantJ
5,000in⁴
Torsional modulusC
483in³

Slenderness ratios

Wall slendernessb/t
31.4
Wall slendernessh/t
34.9

Equivalents in other standards