Rectangular and square HSS

HSS12X12X5/8 HSS304.8X304.8X15.9

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

Dimensions

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

Mass and area

Mass per lengthm
93.34lb/ft
Cross-sectional areaA
25.7in²

Strong axis x–x

Moment of inertiaIx
548in⁴
Elastic section modulusSx
91.4in³
Plastic section modulusZx
109in³
Radius of gyrationrx
4.62in

Weak axis y–y

Moment of inertiaIy
548in⁴
Elastic section modulusSy
91.4in³
Plastic section modulusZy
109in³
Radius of gyrationry
4.62in

Torsion and stability

Torsional constantJ
885in⁴
Torsional modulusC
151in³

Slenderness ratios

Wall slendernessb/t
17.7
Wall slendernessh/t
17.7

Equivalents in other standards