Rectangular and square HSS

HSS12X12X1 HSS304.8X304.8X25.4

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 = 0.93tdes = 0.93
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
12in
Nominal thicknesstnom
1in
Design thicknesstdes
0.93in

Mass and area

Mass per lengthm
141lb/ft
Cross-sectional areaA
39in²

Strong axis x–x

Moment of inertiaIx
772in⁴
Elastic section modulusSx
129in³
Plastic section modulusZx
158in³
Radius of gyrationrx
4.45in

Weak axis y–y

Moment of inertiaIy
772in⁴
Elastic section modulusSy
129in³
Plastic section modulusZy
158in³
Radius of gyrationry
4.45in

Torsion and stability

Torsional constantJ
1,300in⁴
Torsional modulusC
225in³

Slenderness ratios

Wall slendernessb/t
9.9
Wall slendernessh/t
9.9

Equivalents in other standards