Rectangular and square HSS

HSS12X12X7/8 HSS304.8X304.8X22.2

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 = 12d = 12tdes = 0.814tdes = 0.814
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
12in
Nominal thicknesstnom
0.875in
Design thicknesstdes
0.814in

Mass and area

Mass per lengthm
125.8lb/ft
Cross-sectional areaA
34.7in²

Strong axis x–x

Moment of inertiaIx
706in⁴
Elastic section modulusSx
118in³
Plastic section modulusZx
143in³
Radius of gyrationrx
4.51in

Weak axis y–y

Moment of inertiaIy
706in⁴
Elastic section modulusSy
118in³
Plastic section modulusZy
143in³
Radius of gyrationry
4.51in

Torsion and stability

Torsional constantJ
1,170in⁴
Torsional modulusC
202in³

Slenderness ratios

Wall slendernessb/t
11.7
Wall slendernessh/t
11.7

Equivalents in other standards