Rectangular and square HSS

HSS12X6X3/8 HSS304.8X152.4X9.5

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 = 6d = 12tdes = 0.349tdes = 0.349
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
6in
Nominal thicknesstnom
0.375in
Design thicknesstdes
0.349in

Mass and area

Mass per lengthm
42.79lb/ft
Cross-sectional areaA
11.8in²

Strong axis x–x

Moment of inertiaIx
215in⁴
Elastic section modulusSx
35.9in³
Plastic section modulusZx
44.8in³
Radius of gyrationrx
4.28in

Weak axis y–y

Moment of inertiaIy
72.9in⁴
Elastic section modulusSy
24.3in³
Plastic section modulusZy
27.7in³
Radius of gyrationry
2.49in

Torsion and stability

Torsional constantJ
178in⁴
Torsional modulusC
45.8in³

Slenderness ratios

Wall slendernessb/t
14.2
Wall slendernessh/t
31.4

Equivalents in other standards