Rectangular and square HSS

HSS22X20X5/16 HSS558.8X508X7.9

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 = 0.291tdes = 0.291
Cross-section, to scaledimensions in inches

Dimensions

Depthd
22in
Widthb
20in
Nominal thicknesstnom
0.3125in
Design thicknesstdes
0.291in

Mass and area

Mass per lengthm
87.14lb/ft
Cross-sectional areaA
23.9in²

Strong axis x–x

Moment of inertiaIx
1,820in⁴
Elastic section modulusSx
166in³
Plastic section modulusZx
191in³
Radius of gyrationrx
8.73in

Weak axis y–y

Moment of inertiaIy
1,580in⁴
Elastic section modulusSy
158in³
Plastic section modulusZy
179in³
Radius of gyrationry
8.13in

Torsion and stability

Torsional constantJ
2,590in⁴
Torsional modulusC
249in³

Slenderness ratios

Wall slendernessb/t
65.7
Wall slendernessh/t
72.6

Equivalents in other standards