Rectangular and square HSS

HSS5-1/2X5-1/2X5/16 HSS139.7X139.7X7.9

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 = 5.5d = 5.5tdes = 0.291tdes = 0.291
Cross-section, to scaledimensions in inches

Dimensions

Depthd
5.5in
Widthb
5.5in
Nominal thicknesstnom
0.3125in
Design thicknesstdes
0.291in

Mass and area

Mass per lengthm
21.21lb/ft
Cross-sectional areaA
5.85in²

Strong axis x–x

Moment of inertiaIx
25.9in⁴
Elastic section modulusSx
9.43in³
Plastic section modulusZx
11.3in³
Radius of gyrationrx
2.11in

Weak axis y–y

Moment of inertiaIy
25.9in⁴
Elastic section modulusSy
9.43in³
Plastic section modulusZy
11.3in³
Radius of gyrationry
2.11in

Torsion and stability

Torsional constantJ
42.2in⁴
Torsional modulusC
15.7in³

Slenderness ratios

Wall slendernessb/t
15.9
Wall slendernessh/t
15.9

Equivalents in other standards