Rectangular and square HSS

HSS24X18X5/8 HSS609.6X457.2X15.9

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 = 18d = 24tdes = 0.581tdes = 0.581
Cross-section, to scaledimensions in inches

Dimensions

Depthd
24in
Widthb
18in
Nominal thicknesstnom
0.625in
Design thicknesstdes
0.581in

Mass and area

Mass per lengthm
169.9lb/ft
Cross-sectional areaA
46.6in²

Strong axis x–x

Moment of inertiaIx
3,900in⁴
Elastic section modulusSx
325in³
Plastic section modulusZx
386in³
Radius of gyrationrx
9.15in

Weak axis y–y

Moment of inertiaIy
2,510in⁴
Elastic section modulusSy
279in³
Plastic section modulusZy
318in³
Radius of gyrationry
7.34in

Torsion and stability

Torsional constantJ
4,810in⁴
Torsional modulusC
473in³

Slenderness ratios

Wall slendernessb/t
28
Wall slendernessh/t
38.3

Equivalents in other standards