Rectangular and square HSS

HSS24X20X5/8 HSS609.6X508X15.9

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 = 24tdes = 0.581tdes = 0.581
Cross-section, to scaledimensions in inches

Dimensions

Depthd
24in
Widthb
20in
Nominal thicknesstnom
0.625in
Design thicknesstdes
0.581in

Mass and area

Mass per lengthm
178.4lb/ft
Cross-sectional areaA
48.9in²

Strong axis x–x

Moment of inertiaIx
4,220in⁴
Elastic section modulusSx
351in³
Plastic section modulusZx
413in³
Radius of gyrationrx
9.29in

Weak axis y–y

Moment of inertiaIy
3,190in⁴
Elastic section modulusSy
319in³
Plastic section modulusZy
365in³
Radius of gyrationry
8.08in

Torsion and stability

Torsional constantJ
5,690in⁴
Torsional modulusC
528in³

Slenderness ratios

Wall slendernessb/t
31.4
Wall slendernessh/t
38.3

Equivalents in other standards