Rectangular and square HSS

HSS9X3X5/16 HSS228.6X76.2X7.9

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 = 3d = 9tdes = 0.291tdes = 0.291
Cross-section, to scaledimensions in inches

Dimensions

Depthd
9in
Widthb
3in
Nominal thicknesstnom
0.3125in
Design thicknesstdes
0.291in

Mass and area

Mass per lengthm
23.34lb/ft
Cross-sectional areaA
6.43in²

Strong axis x–x

Moment of inertiaIx
57.7in⁴
Elastic section modulusSx
12.8in³
Plastic section modulusZx
16.9in³
Radius of gyrationrx
3in

Weak axis y–y

Moment of inertiaIy
9.88in⁴
Elastic section modulusSy
6.59in³
Plastic section modulusZy
7.63in³
Radius of gyrationry
1.24in

Torsion and stability

Torsional constantJ
28.9in⁴
Torsional modulusC
13.6in³

Slenderness ratios

Wall slendernessb/t
7.31
Wall slendernessh/t
27.9

Equivalents in other standards