Rectangular and square HSS

HSS12X3X1/4 HSS304.8X76.2X6.4

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 = 3d = 12tdes = 0.233tdes = 0.233
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
3in
Nominal thicknesstnom
0.25in
Design thicknesstdes
0.233in

Mass and area

Mass per lengthm
24.12lb/ft
Cross-sectional areaA
6.63in²

Strong axis x–x

Moment of inertiaIx
103in⁴
Elastic section modulusSx
17.2in³
Plastic section modulusZx
22.9in³
Radius of gyrationrx
3.94in

Weak axis y–y

Moment of inertiaIy
11.1in⁴
Elastic section modulusSy
7.38in³
Plastic section modulusZy
8.28in³
Radius of gyrationry
1.29in

Torsion and stability

Torsional constantJ
34.5in⁴
Torsional modulusC
15.1in³

Slenderness ratios

Wall slendernessb/t
9.88
Wall slendernessh/t
48.5

Equivalents in other standards