Rectangular and square HSS

HSS8X3X1/4 HSS203.2X76.2X6.4

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 = 8tdes = 0.233tdes = 0.233
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Widthb
3in
Nominal thicknesstnom
0.25in
Design thicknesstdes
0.233in

Mass and area

Mass per lengthm
17.32lb/ft
Cross-sectional areaA
4.77in²

Strong axis x–x

Moment of inertiaIx
35.5in⁴
Elastic section modulusSx
8.88in³
Plastic section modulusZx
11.5in³
Radius of gyrationrx
2.73in

Weak axis y–y

Moment of inertiaIy
7.49in⁴
Elastic section modulusSy
4.99in³
Plastic section modulusZy
5.7in³
Radius of gyrationry
1.25in

Torsion and stability

Torsional constantJ
20.8in⁴
Torsional modulusC
10in³

Slenderness ratios

Wall slendernessb/t
9.88
Wall slendernessh/t
31.3

Equivalents in other standards