Rectangular and square HSS

HSS12X12X1/2 HSS304.8X304.8X12.7

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 = 0.465tdes = 0.465
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
12in
Nominal thicknesstnom
0.5in
Design thicknesstdes
0.465in

Mass and area

Mass per lengthm
76.07lb/ft
Cross-sectional areaA
20.9in²

Strong axis x–x

Moment of inertiaIx
457in⁴
Elastic section modulusSx
76.2in³
Plastic section modulusZx
89.6in³
Radius of gyrationrx
4.68in

Weak axis y–y

Moment of inertiaIy
457in⁴
Elastic section modulusSy
76.2in³
Plastic section modulusZy
89.6in³
Radius of gyrationry
4.68in

Torsion and stability

Torsional constantJ
728in⁴
Torsional modulusC
123in³

Slenderness ratios

Wall slendernessb/t
22.8
Wall slendernessh/t
22.8

Equivalents in other standards