Rectangular and square HSS

HSS12X6X5/8 HSS304.8X152.4X15.9

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 = 6d = 12tdes = 0.581tdes = 0.581
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
6in
Nominal thicknesstnom
0.625in
Design thicknesstdes
0.581in

Mass and area

Mass per lengthm
67.82lb/ft
Cross-sectional areaA
18.7in²

Strong axis x–x

Moment of inertiaIx
321in⁴
Elastic section modulusSx
53.4in³
Plastic section modulusZx
68.8in³
Radius of gyrationrx
4.14in

Weak axis y–y

Moment of inertiaIy
107in⁴
Elastic section modulusSy
35.5in³
Plastic section modulusZy
42.1in³
Radius of gyrationry
2.39in

Torsion and stability

Torsional constantJ
271in⁴
Torsional modulusC
71.1in³

Slenderness ratios

Wall slendernessb/t
7.33
Wall slendernessh/t
17.7

Equivalents in other standards