Rectangular and square HSS

HSS7X4X5/16 HSS177.8X101.6X7.9

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 = 4d = 7tdes = 0.291tdes = 0.291
Cross-section, to scaledimensions in inches

Dimensions

Depthd
7in
Widthb
4in
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
36.5in⁴
Elastic section modulusSx
10.4in³
Plastic section modulusZx
13.1in³
Radius of gyrationrx
2.5in

Weak axis y–y

Moment of inertiaIy
15.2in⁴
Elastic section modulusSy
7.58in³
Plastic section modulusZy
8.83in³
Radius of gyrationry
1.61in

Torsion and stability

Torsional constantJ
35.4in⁴
Torsional modulusC
14.4in³

Slenderness ratios

Wall slendernessb/t
10.7
Wall slendernessh/t
21.1

Equivalents in other standards