Rectangular and square HSS

HSS20X6X1/2 HSS508X152.4X12.7

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 = 6d = 20tdes = 0.465tdes = 0.465
Cross-section, to scaledimensions in inches

Dimensions

Depthd
20in
Widthb
6in
Nominal thicknesstnom
0.5in
Design thicknesstdes
0.465in

Mass and area

Mass per lengthm
82.88lb/ft
Cross-sectional areaA
22.8in²

Strong axis x–x

Moment of inertiaIx
1,020in⁴
Elastic section modulusSx
102in³
Plastic section modulusZx
134in³
Radius of gyrationrx
6.68in

Weak axis y–y

Moment of inertiaIy
148in⁴
Elastic section modulusSy
49.4in³
Plastic section modulusZy
55.8in³
Radius of gyrationry
2.55in

Torsion and stability

Torsional constantJ
441in⁴
Torsional modulusC
100in³

Slenderness ratios

Wall slendernessb/t
9.9
Wall slendernessh/t
40

Equivalents in other standards