Rectangular and square HSS

HSS5-1/2X5-1/2X3/8 HSS139.7X139.7X9.5

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 = 5.5d = 5.5tdes = 0.349tdes = 0.349
Cross-section, to scaledimensions in inches

Dimensions

Depthd
5.5in
Widthb
5.5in
Nominal thicknesstnom
0.375in
Design thicknesstdes
0.349in

Mass and area

Mass per lengthm
24.93lb/ft
Cross-sectional areaA
6.88in²

Strong axis x–x

Moment of inertiaIx
29.7in⁴
Elastic section modulusSx
10.8in³
Plastic section modulusZx
13.1in³
Radius of gyrationrx
2.08in

Weak axis y–y

Moment of inertiaIy
29.7in⁴
Elastic section modulusSy
10.8in³
Plastic section modulusZy
13.1in³
Radius of gyrationry
2.08in

Torsion and stability

Torsional constantJ
49in⁴
Torsional modulusC
18.4in³

Slenderness ratios

Wall slendernessb/t
12.8
Wall slendernessh/t
12.8

Equivalents in other standards