Rectangular and square HSS

HSS12X4X3/8 HSS304.8X101.6X9.5

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 = 4d = 12tdes = 0.349tdes = 0.349
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
4in
Nominal thicknesstnom
0.375in
Design thicknesstdes
0.349in

Mass and area

Mass per lengthm
37.69lb/ft
Cross-sectional areaA
10.4in²

Strong axis x–x

Moment of inertiaIx
168in⁴
Elastic section modulusSx
28in³
Plastic section modulusZx
36.7in³
Radius of gyrationrx
4.02in

Weak axis y–y

Moment of inertiaIy
28.9in⁴
Elastic section modulusSy
14.5in³
Plastic section modulusZy
16.6in³
Radius of gyrationry
1.67in

Torsion and stability

Torsional constantJ
84.1in⁴
Torsional modulusC
29.5in³

Slenderness ratios

Wall slendernessb/t
8.46
Wall slendernessh/t
31.4

Equivalents in other standards