Rectangular and square HSS

HSS3-1/2X2-1/2X5/16 HSS88.9X63.5X7.9

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 = 2.5d = 3.5tdes = 0.291tdes = 0.291
Cross-section, to scaledimensions in inches

Dimensions

Depthd
3.5in
Widthb
2.5in
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
4.34in⁴
Elastic section modulusSx
2.48in³
Plastic section modulusZx
3.2in³
Radius of gyrationrx
1.22in

Weak axis y–y

Moment of inertiaIy
2.54in⁴
Elastic section modulusSy
2.03in³
Plastic section modulusZy
2.52in³
Radius of gyrationry
0.93in

Torsion and stability

Torsional constantJ
5.53in⁴
Torsional modulusC
4.03in³

Slenderness ratios

Wall slendernessb/t
5.59
Wall slendernessh/t
9.03

Equivalents in other standards