Rectangular and square HSS

HSS12X10X5/16 HSS304.8X254X7.9

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 = 10d = 12tdes = 0.291tdes = 0.291
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
10in
Nominal thicknesstnom
0.3125in
Design thicknesstdes
0.291in

Mass and area

Mass per lengthm
44.6lb/ft
Cross-sectional areaA
12.2in²

Strong axis x–x

Moment of inertiaIx
264in⁴
Elastic section modulusSx
44in³
Plastic section modulusZx
51.7in³
Radius of gyrationrx
4.64in

Weak axis y–y

Moment of inertiaIy
200in⁴
Elastic section modulusSy
40in³
Plastic section modulusZy
45.7in³
Radius of gyrationry
4.04in

Torsion and stability

Torsional constantJ
356in⁴
Torsional modulusC
66.1in³

Slenderness ratios

Wall slendernessb/t
31.4
Wall slendernessh/t
38.2

Equivalents in other standards