Rectangular and square HSS

HSS12X12X3/4 HSS304.8X304.8X19.0

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 = 0.698tdes = 0.698
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
12in
Nominal thicknesstnom
0.75in
Design thicknesstdes
0.698in

Mass and area

Mass per lengthm
109.9lb/ft
Cross-sectional areaA
30.3in²

Strong axis x–x

Moment of inertiaIx
631in⁴
Elastic section modulusSx
105in³
Plastic section modulusZx
127in³
Radius of gyrationrx
4.56in

Weak axis y–y

Moment of inertiaIy
631in⁴
Elastic section modulusSy
105in³
Plastic section modulusZy
127in³
Radius of gyrationry
4.56in

Torsion and stability

Torsional constantJ
1,030in⁴
Torsional modulusC
177in³

Slenderness ratios

Wall slendernessb/t
14.2
Wall slendernessh/t
14.2

Equivalents in other standards