Rectangular and square HSS

HSS 406x203x16

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 = 203.2d = 406.4t = 15.88t = 15.88
Cross-section, to scaledimensions in mm

Dimensions

Depthd
406.4mm
Widthb
203.2mm
Thicknesst
15.88mm
Outside corner radiusro
31.75mm

Mass and area

Mass per lengthm
139kg/m
Cross-sectional areaA
17,703mm²
Outside perimeterP
1,165mm

Strong axis x–x

Moment of inertiaIx
359.410⁶ mm⁴
Elastic section modulusSx
1,76910³ mm³
Plastic section modulusZx
2,24510³ mm³
Radius of gyrationrx
142.5mm

Weak axis y–y

Moment of inertiaIy
120.510⁶ mm⁴
Elastic section modulusSy
1,18610³ mm³
Plastic section modulusZy
1,37810³ mm³
Radius of gyrationry
82.51mm

Torsion and stability

Torsional constantJ
302,35210³ mm⁴

Equivalents in other standards