Rectangular and square HSS

HSS8X3X5/16 HSS203.2X76.2X7.9

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 = 0.291tdes = 0.291
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Widthb
3in
Nominal thicknesstnom
0.3125in
Design thicknesstdes
0.291in

Mass and area

Mass per lengthm
21.21lb/ft
Cross-sectional areaA
5.85in²

Strong axis x–x

Moment of inertiaIx
42.4in⁴
Elastic section modulusSx
10.6in³
Plastic section modulusZx
13.9in³
Radius of gyrationrx
2.69in

Weak axis y–y

Moment of inertiaIy
8.81in⁴
Elastic section modulusSy
5.87in³
Plastic section modulusZy
6.84in³
Radius of gyrationry
1.23in

Torsion and stability

Torsional constantJ
24.9in⁴
Torsional modulusC
12.1in³

Slenderness ratios

Wall slendernessb/t
7.31
Wall slendernessh/t
24.5

Equivalents in other standards