Rectangular and square HSS

HSS12X12X3/8 HSS304.8X304.8X9.5

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 = 0.349tdes = 0.349
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
12in
Nominal thicknesstnom
0.375in
Design thicknesstdes
0.349in

Mass and area

Mass per lengthm
58.1lb/ft
Cross-sectional areaA
16in²

Strong axis x–x

Moment of inertiaIx
357in⁴
Elastic section modulusSx
59.5in³
Plastic section modulusZx
69.2in³
Radius of gyrationrx
4.73in

Weak axis y–y

Moment of inertiaIy
357in⁴
Elastic section modulusSy
59.5in³
Plastic section modulusZy
69.2in³
Radius of gyrationry
4.73in

Torsion and stability

Torsional constantJ
561in⁴
Torsional modulusC
94.6in³

Slenderness ratios

Wall slendernessb/t
31.4
Wall slendernessh/t
31.4

Equivalents in other standards