Rectangular and square HSS

HSS12X8X3/8 HSS304.8X203.2X9.5

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 = 8d = 12tdes = 0.349tdes = 0.349
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
8in
Nominal thicknesstnom
0.375in
Design thicknesstdes
0.349in

Mass and area

Mass per lengthm
47.9lb/ft
Cross-sectional areaA
13.2in²

Strong axis x–x

Moment of inertiaIx
262in⁴
Elastic section modulusSx
43.7in³
Plastic section modulusZx
53in³
Radius of gyrationrx
4.47in

Weak axis y–y

Moment of inertiaIy
140in⁴
Elastic section modulusSy
35.1in³
Plastic section modulusZy
40.1in³
Radius of gyrationry
3.27in

Torsion and stability

Torsional constantJ
293in⁴
Torsional modulusC
62.1in³

Slenderness ratios

Wall slendernessb/t
19.9
Wall slendernessh/t
31.4

Equivalents in other standards