Rectangular and square HSS

HSS24X18X5/16 HSS609.6X457.2X7.9

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 = 0.291tdes = 0.291
Cross-section, to scaledimensions in inches

Dimensions

Depthd
24in
Widthb
18in
Nominal thicknesstnom
0.3125in
Design thicknesstdes
0.291in

Mass and area

Mass per lengthm
87.14lb/ft
Cross-sectional areaA
23.9in²

Strong axis x–x

Moment of inertiaIx
2,060in⁴
Elastic section modulusSx
172in³
Plastic section modulusZx
201in³
Radius of gyrationrx
9.3in

Weak axis y–y

Moment of inertiaIy
1,330in⁴
Elastic section modulusSy
148in³
Plastic section modulusZy
166in³
Radius of gyrationry
7.47in

Torsion and stability

Torsional constantJ
2,500in⁴
Torsional modulusC
244in³

Slenderness ratios

Wall slendernessb/t
58.9
Wall slendernessh/t
79.5

Equivalents in other standards