Rectangular and square HSS

HSS12X12X1/4 HSS304.8X304.8X6.4

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 = 12d = 12tdes = 0.233tdes = 0.233
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
12in
Nominal thicknesstnom
0.25in
Design thicknesstdes
0.233in

Mass and area

Mass per lengthm
39.43lb/ft
Cross-sectional areaA
10.8in²

Strong axis x–x

Moment of inertiaIx
248in⁴
Elastic section modulusSx
41.4in³
Plastic section modulusZx
47.6in³
Radius of gyrationrx
4.79in

Weak axis y–y

Moment of inertiaIy
248in⁴
Elastic section modulusSy
41.4in³
Plastic section modulusZy
47.6in³
Radius of gyrationry
4.79in

Torsion and stability

Torsional constantJ
384in⁴
Torsional modulusC
64.5in³

Slenderness ratios

Wall slendernessb/t
48.5
Wall slendernessh/t
48.5

Equivalents in other standards