Rectangular and square HSS

HSS10X8X5/16 HSS254X203.2X7.9

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 = 8d = 10tdes = 0.291tdes = 0.291
Cross-section, to scaledimensions in inches

Dimensions

Depthd
10in
Widthb
8in
Nominal thicknesstnom
0.3125in
Design thicknesstdes
0.291in

Mass and area

Mass per lengthm
36.1lb/ft
Cross-sectional areaA
9.92in²

Strong axis x–x

Moment of inertiaIx
145in⁴
Elastic section modulusSx
29in³
Plastic section modulusZx
34.4in³
Radius of gyrationrx
3.82in

Weak axis y–y

Moment of inertiaIy
103in⁴
Elastic section modulusSy
25.7in³
Plastic section modulusZy
29.6in³
Radius of gyrationry
3.22in

Torsion and stability

Torsional constantJ
190in⁴
Torsional modulusC
43.5in³

Slenderness ratios

Wall slendernessb/t
24.5
Wall slendernessh/t
31.4

Equivalents in other standards