Rectangular and square HSS

HSS4X2X5/16 HSS101.6X50.8X7.9

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 = 2d = 4tdes = 0.291tdes = 0.291
Cross-section, to scaledimensions in inches

Dimensions

Depthd
4in
Widthb
2in
Nominal thicknesstnom
0.3125in
Design thicknesstdes
0.291in

Mass and area

Mass per lengthm
10.58lb/ft
Cross-sectional areaA
2.94in²

Strong axis x–x

Moment of inertiaIx
5.13in⁴
Elastic section modulusSx
2.56in³
Plastic section modulusZx
3.43in³
Radius of gyrationrx
1.32in

Weak axis y–y

Moment of inertiaIy
1.67in⁴
Elastic section modulusSy
1.67in³
Plastic section modulusZy
2.08in³
Radius of gyrationry
0.754in

Torsion and stability

Torsional constantJ
4.4in⁴
Torsional modulusC
3.59in³

Slenderness ratios

Wall slendernessb/t
3.87
Wall slendernessh/t
10.7

Equivalents in other standards