Rectangular and square HSS

HSS7X7X5/16 HSS177.8X177.8X7.9

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

Dimensions

Depthd
7in
Widthb
7in
Nominal thicknesstnom
0.3125in
Design thicknesstdes
0.291in

Mass and area

Mass per lengthm
27.59lb/ft
Cross-sectional areaA
7.59in²

Strong axis x–x

Moment of inertiaIx
56.1in⁴
Elastic section modulusSx
16in³
Plastic section modulusZx
18.9in³
Radius of gyrationrx
2.72in

Weak axis y–y

Moment of inertiaIy
56.1in⁴
Elastic section modulusSy
16in³
Plastic section modulusZy
18.9in³
Radius of gyrationry
2.72in

Torsion and stability

Torsional constantJ
89.7in⁴
Torsional modulusC
26.1in³

Slenderness ratios

Wall slendernessb/t
21.1
Wall slendernessh/t
21.1

Equivalents in other standards