Rectangular and square HSS

HSS 406x305x19

Standard: CSA G40.20/G40.21Source: Calculated (exact engine)
Calculated: design thickness = nominal thickness (CSA G40.20, Class C), outside radius 2t. Range derived from ASTM A500 sizes — cross-check with the CISC tables.
xyb = 304.8d = 406.4t = 19.05t = 19.05
Cross-section, to scaledimensions in mm

Dimensions

Depthd
406.4mm
Widthb
304.8mm
Thicknesst
19.05mm
Outside corner radiusro
38.1mm

Mass and area

Mass per lengthm
194kg/m
Cross-sectional areaA
24,711mm²
Outside perimeterP
1,357mm

Strong axis x–x

Moment of inertiaIx
557.410⁶ mm⁴
Elastic section modulusSx
2,74310³ mm³
Plastic section modulusZx
3,35510³ mm³
Radius of gyrationrx
150.2mm

Weak axis y–y

Moment of inertiaIy
356.110⁶ mm⁴
Elastic section modulusSy
2,33710³ mm³
Plastic section modulusZy
2,75110³ mm³
Radius of gyrationry
120mm

Torsion and stability

Torsional constantJ
713,59610³ mm⁴

Equivalents in other standards