Rectangular and square HSS

HSS22X20X1/2 HSS558.8X508X12.7

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 = 0.465tdes = 0.465
Cross-section, to scaledimensions in inches

Dimensions

Depthd
22in
Widthb
20in
Nominal thicknesstnom
0.5in
Design thicknesstdes
0.465in

Mass and area

Mass per lengthm
137.3lb/ft
Cross-sectional areaA
37.6in²

Strong axis x–x

Moment of inertiaIx
2,820in⁴
Elastic section modulusSx
256in³
Plastic section modulusZx
297in³
Radius of gyrationrx
8.65in

Weak axis y–y

Moment of inertiaIy
2,440in⁴
Elastic section modulusSy
244in³
Plastic section modulusZy
279in³
Radius of gyrationry
8.04in

Torsion and stability

Torsional constantJ
4,060in⁴
Torsional modulusC
391in³

Slenderness ratios

Wall slendernessb/t
40
Wall slendernessh/t
44.3

Equivalents in other standards