Rectangular and square HSS

HSS20X8X1 HSS508X203.2X25.4

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 = 8d = 20tdes = 0.93tdes = 0.93
Cross-section, to scaledimensions in inches

Dimensions

Depthd
20in
Widthb
8in
Nominal thicknesstnom
1in
Design thicknesstdes
0.93in

Mass and area

Mass per lengthm
168.2lb/ft
Cross-sectional areaA
46.4in²

Strong axis x–x

Moment of inertiaIx
2,060in⁴
Elastic section modulusSx
206in³
Plastic section modulusZx
273in³
Radius of gyrationrx
6.67in

Weak axis y–y

Moment of inertiaIy
472in⁴
Elastic section modulusSy
118in³
Plastic section modulusZy
141in³
Radius of gyrationry
3.19in

Torsion and stability

Torsional constantJ
1,320in⁴
Torsional modulusC
248in³

Slenderness ratios

Wall slendernessb/t
5.6
Wall slendernessh/t
18.5

Equivalents in other standards