Rectangular and square HSS

HSS5-1/2X5-1/2X1/4 HSS139.7X139.7X6.4

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 = 0.233tdes = 0.233
Cross-section, to scaledimensions in inches

Dimensions

Depthd
5.5in
Widthb
5.5in
Nominal thicknesstnom
0.25in
Design thicknesstdes
0.233in

Mass and area

Mass per lengthm
17.32lb/ft
Cross-sectional areaA
4.77in²

Strong axis x–x

Moment of inertiaIx
21.7in⁴
Elastic section modulusSx
7.9in³
Plastic section modulusZx
9.32in³
Radius of gyrationrx
2.13in

Weak axis y–y

Moment of inertiaIy
21.7in⁴
Elastic section modulusSy
7.9in³
Plastic section modulusZy
9.32in³
Radius of gyrationry
2.13in

Torsion and stability

Torsional constantJ
34.8in⁴
Torsional modulusC
12.9in³

Slenderness ratios

Wall slendernessb/t
20.6
Wall slendernessh/t
20.6

Equivalents in other standards